G8Weeks1-9

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1/27Grade 8 Page 1

Geometry/Measurement

1

Problems of the Week

Visual

Multi-Step

Data/Investigations

Problem-SolvingStrategies

What Do You Say?

Draw a picture to answer the following question based on

the information given:

Margaret walked 8 blocks south and 3 blocks east fromher home to school. After school she walked 2 blocks

north and 1 block east to the park. From the park she

traveled 1 block north and 2 blocks west

to visit her friend. How far does

Margaret have to walk to return home?

An aquarium is 36 inches long, 24

inches wide and 16 inches tall. The

aquarium is filled with distilled

water to a level of 12 inches. If a

cubic foot of distilled water weighs62.4 pounds, how many pounds of

water are in the aquarium? Express

your answer as a decimal correct to

the nearest tenth.

From 1996-97 Mathcounts School Handbook

The Gum Machine

Karen and Diane are having an argument.

They both know that the machine is loaded

with gum balls of 6 different colors. Karenfeels lucky. She thinks she can get each color

by using only 6 pennies. Diane feels it will

take at least 15. Lets assume that the machine

is loaded with an equal number of each color.

How many pennies do you think are needed to

get one of each color? Do you agree with

either Karen or Diane? Use a fair number cube

to experiment and find your answer.

Four students are called to sit in four chairs on

a stage. The students are Bob, Brenda, Carol,

and Don. Bob and Brenda are cousins. If the

students are called up in random order and take

seats in the order in which they are called,

what is the probability that Bob and Brenda

will sit next to each other?

Jack Bean-Stalk has a school teacherwho knows a few magic tricks of her

own. She is watching her magic beans

grow according to this pattern.

Day 1 2 3 4 5 6 7

# of beans 1 1 2 3 5 8 13

On which day will she have enough

magic beans to give at least 5 to each of

her 20 students?

Johnny has trouble finding the LCD when

subtracting fractions. You want to help him.

Write the steps Johnny needs to follow in

order to find the LCD.

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2/27Grade 8 Page 2

MentalMath

1

Keeping Skills Sharp

Grade 8

1. (5 + 3)5

2. (2)(5)(0)(7)(8)

3. Write .03 as a fraction.

4. Write .3as a fraction.

5. Solve fory:1

3y = 3

6. True or False: 522 18 = 18 522

7. 5 17

8. Write 25,000 in scientific notation.

9. 28 22

10. Simplify: 2x+ 5y 7x+ 2xy

1. 3 + 8 2 5 =

2. 10% of 100 =

3. 9 7 5 =

4. 12 4 + 5 2 24 6 =

5. 2[(4 + 11) (12 7)] =

6.42 3

17 8

+

=

7. .97(10) =

8. 31

3+ 2

1

7=

9. .343 10 =

10. 36 .6 =

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________

*See answer key. This section should not be duplicated for the students.

8/10/2019 G8Weeks1-9

3/27Grade 8 Page 3

1Visual

Multi-Step

Data/Investigations


Problem-Solving Strategies

What Do You Say? Answers will vary;however, students could mention using the prime

factorization of each denominator to determine the

LCD.

Mental Math

1. 40

2. 0

3.3

100

4.1

3

5. 9

6. False

7. 12

8. 2.5 !104

9. 210

10. 5x+ 2xy+ 5y


1. 14

2. 103. 315

4. 9

5. 6

6. 5

7. 9.7

8. 510

21

9. .0343

10. 60

Grade 8

Answer: 374.4 pounds

Answers will vary depending upon experiments.

Strategy: make an organized list or use a formula.

B BR C D B BR D C B C BR DB C D BR B D BR C B D C BR

BR B C D BR B D C BR C B D

BR C D B BR D B C BR D C B

C BR B D C BR D B C B BR D

C B D BR C D BR B C D B BR

D BR C B D BR B C D C BR B

D C B BR D B BR C D B C BR

24 possible12 they sit together

Answer 12/24 = 1/2

N

S

EW

Home

8

blocks

3 blocks

2 blocks

1 block1 block

2 blocksPark

School

Boyfriend

2 blocks west5 blocks north

Answer: Day 12

This section provides an

oral drill for sharpening

one's mental computation.

Before each session give

these directions, "Number

your paper from 1 to 10.

Write your answer as the

questions are called out.

Each question will be

repeated one time only."

Answer Key

F

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4/27

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5/27Grade 8 Page 5

MentalMath

2


1. In what quadrant would you find the ordered pair

(2, 3)?

2. Identify the mode of the data:

{5, 7, 13, 7, 1, 5, 6, 7}

3. 8 3 + 2 7 + 12

4. 60 falls between what two consecutive

integers?

5. 5 8 5

6. 7 13

4

7. Write the next number in this pattern:

3, 9, 27, 81, ___

8.12

15 =

?

5

9. True or false: 2 3 7 = 3 7 2

10. 71

3

1. 5 + 3 2 + 12

2. 22+ 4 234

3. Order these numbers from least to greatest: 1

2, 0, 3, 1, 1

4. 8 = 3

5. Compare:1

3 ?

1

4

6. Compare:15

28 ?

19

42

7. List all the factors of 36.

8. Explain why 1 is a prime number.

9. 30= ____

10. Half of a dozen

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________


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6/27Grade 8 Page 6

2Visual

Multi-Step

Data/Investigations



What Do You Say?

Mental Math

1. III

2. 7

3. 12

4. 7 and 8

5. 200

6. 51

4

7. 243

8. 4

9. True

10. 21


1. 23

2. 6

3. 3, 1, 1

2

, 0, 1

4. 2

5. >

6. 3, 1, 1

2, 0, 1

7. (1, 2, 3, 4, 6, 9, 12, 18, 36)

8. It has only 1 factor.

9. 110. 6

Answer: 5

Answer: 25 inches2

Answer: 4 3 2 1 = 24124

Answer: The grandchildren each get $5,000; the son

gets $20,000; and the widow gets $32,000.

Answer: 156

The two expressions are not always the same. For

example, ifx= 3 andy= 5

3 (5) = 8 while 3 5 = 2











Answer Key

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7/27Grade 8 Page 7


3


Visual

Multi-Step

Data/Investigations


What Do You Say?

Consider the shape shown.

Can you keep the perimeter

the same and make the areasmaller? Larger? If so, draw

the picture.

NCTM Magazine

During Bully's first week working in a

china shop he breaks a vase that costs$45.89, two glasses that cost $16.25

each, and a platter that costs $135.49. If

he makes $5.25 an hour, how many

hours will he have to work to pay for the

things he broke?

Tom has some cubes that are 2

inches on each side. How many of

them will fit into a box that is a cube

with each side 4 inches long?

For the set (3, 4, 5, 8,x) the mean, median,

and mode all have the same value. What is

the value ofx?

Make a Diagram

Martinezs A-1 Cars and Trucks is having a

super sale. Jos and Alex are setting up the lot.

Mr. Martinez gives them a diagram of the lot

and these directions. Put the 4-door car in

front of the van. Put the jeep between the truck

and the van. Put the sports car to the left of the

2-door and 4-dor cars. How did Mike and

Don set up the lot?

Will the expression 5x

always be smaller

than 5? Explain.

8/10/2019 G8Weeks1-9

8/27Grade 8 Page 8

1. .765 + 3.876 + 5

2. Convert .5 to a fraction.

3. Find the area:

4. Find the area:

5.3

7 14 =

x Solve forx.

6. Three loaves of bread cost $3.87. How much do two loaves cost?

7. Find 55% of 480.

8. 6 out of 40 is equivalent to ___ out of ___.

9. 4 + 3 6 9 8

10. 15 + 0.5

MentalMath

3


1. What is 25% of 20?

2. (2 !103) (3 !104)

3. Solve forx: 12x= 36

4.

1

2

1

3

5. Multiply three tenths by two tenths.

6. Compare1

2and .50.

7. 3x2+ 3y+ 7x2

8. Solve forx: x2= 25

9. Express .08 as a fraction in simplest form.

10. If you simplified(3) (4)(7)(8)(2)(15), would your answer be positive or nega-

tive?

5

2

3

2

2

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________

mm

mm

cm


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10/27Grade 8 Page 10


4


Visual

Multi-Step

Data/Investigations

Problem-Solving

Strategies

What Do You Say?

Mr. Ellen had the following exercise on the overhead

projector for his class to do when they came in Monday

morning. What was his message to the class? Look ator draw this number line and fill in the letters given in

the instructions. The first one is done for you.

M to I is +4 O2to O

3is +4

I to O1is 8 O

3to G

1is 6

O1to N

1is +7 G

1to D is +3

N1to N

2is +2 D to G

2is +8

N2to O

2is 8 G

2to R is 4

M I

A prism with a square base has a

height of 45 centimeters; the volume is

7,200,000 cm3. Find the area of the

base.

Martinezs A-1 Cars and Trucks is having a

super sale. What would be the total price of all

the vehicles if the least expensive is $10,000

less than the most expensive, the van costs

$5,500 more than the jeep which costs the

same as the 4-door, the truck costs $25,000, the

sports car costs $30,000, and the 2-door is the

least expensive and costs $2,000 less than the

4-door?

2.5 !102= ______ !103

Explain how you know your answer is

correct.

Jamal was hired to do some

lawn work for $40 a day, but

on the condition that for

every day he was idle, he

should forfeit $15.50. At the

end of 20 days he had$467.00. How many days

had Jamal been idle?

A television station plays 3 songs and 4 com-

mercials every 20 minutes. For one 20 minute

segment the director chooses three different

songs to be played and the producer choosesfour different commercials. The producer then

decides that the order will be song, commercial,

two songs, three commercials. How many

possible arrangements are there for this 20

minute segment?

I

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MentalMath

4


1. .7 + .02 + 4

2. What is the LCM of 8 and 12?

3. What is the GCF of 8 and 12?

4. What is the complement of a 30angle?

5. (0.03)2

6. Write 1.7 !105in standard form.

7. Multiply: x2(2x+ 3)

8. 7 2 + 6 3

9. Solve for k:

2

3 =

8

k

10. Write .75 as a fraction.

5

4

3

4

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________

m

m

m

m


1. 3 + 2 1 !4 =

2. Find the perimeter:

3. Find the measure of angleA.

4. 5% of 34 =

5. 0.3 0.4 =

6. Express 7.4% as a fraction and a decimal.

7. Solve for n: 12n = 84

8. 25 + [48 (12 + 4)] 16 =

9. Solve forx: x+ 2 = 6

10. Multiply 2.96 5.67; round the answer to the

nearest hundredth.

A

60

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4Visual

Multi-Step

Data/Investigations



What Do You Say?

Mental Math

1. 4.72

2. 24

3. 4

4. 60

5. 0.0009

6. 170,000

7. 2x3+ 3x2

8. 16

9. 12

10.3

4


1. 1

2. 18 meters

3. 60

4. 1.7

5. .12

6.37

500and 0.074

7. 7

8. 12

9. 4

10. 16.7832, 16.78

Answer: GOOD MORNING

Answer: 160,000 cm2

Answer: $146,500

Answer: 6 days idle 14 $40 = 560

6 15.5 = 93

$467

2.5 !102= 0.25 !103

The two numbers are equivalent, so if we multiply

one of them by ten by increasing the exponent, then

we must also divide it by ten by shifting the decimal

point in 2.5 one place to the left.

144 possible arrangements

3 x 4 x 2 x 1 x 3 x 2 x 1 = 144

This section provides anoral drill for sharpening









Answer Key

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5


Visual

Multi-Step

Data/Investigations


What Do You Say?

Show how to slice this

cube so that the cross

section is a trapezoid.

At a local store, the price of all televisions

was reduced 25%. Store employees aregiven an additional 20% discount

on sale prices. What would be

the cost a store employee would pay

for a television originally

priced at $360?

1997-98 Mathcounts Handbook

A cube has a surface area of 294 cm2.

What is its volume?

A math class earned the following set of

scores on a test:

4"35"

6"0 4 5

7"1 2 3 3

8"4 9

9"3

Create a box plot from these scores.

Logical Reasoning

Suppose two identical tanks are to be filled

with water. The first tank begins filling 5

minutes before the second tank begins

filling. The first tank can be filled in 30

minutes. The second tank can be filled in 20

minutes. How much time will pass before

both tanks hold the same amount of water?

A poll asks students 3 questions: Do you play

tennis? Do you swim? Do you ride a bike? The

results are tallied, and the percentage of students

who participate in each sport is found. Why

should these data not be presented in a circle

graph?

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MentalMath

5


1. Simplify: 98 3 + 2 3

2. Write 1.31 as a percent.

3. Find the volume of a cube with sides measuring

2 centimeters.

4. Find the surface area of a cube with sides measuring

2 centimeters.

5. Which distance is greater: 5.1 km or 5001 m?

6. Round 25.9878 to the nearest hundredth.

7. Solve forx: 2x+ 3 = 7

8. What is the mean for the following set of numbers

{7, 4, 7}?

9. What is 80% of 50?10. Simplify: x 7y+ 4x 2y

1. How many inches are in 19 yards?

2. 12 3.987 =

3. Four pencils and one pen cost $1.25. Two pencils

and three pens cost $2.25. What is the cost of one

pen?

4.3

4

5

12 =

5. Write the next two numbers in this pattern:

3, 4, 7, 11, ____, ____

6. Using the distributive property, write an

expression equivalent to 4(x+ 3).

7. Express 100,000 in scientific notation.

8. Find the area of a rectangle 6" by 4" .

9. Write in simplest form:10

16

10. Which is greater:1

2or

1

3?

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________


8/10/2019 G8Weeks1-9


5Visual

Multi-Step

Data/Investigations



What Do You Say?

Mental Math

1. 300

2. 131%

3. 8 cm3

4. 24 cm2

5. 5.1 km

6. 25.99

7. x= 2

8. 6

9. 40

10. 5x 9y


1. 684 inches

2. 8.013

3. $.65

4.4

12 =

1

3

5. 18, 29

6. (4 x) + (4 3)

7. 1 !105

8. 24 sq. in

9.5

8

10.1

2

Answer: $216

Answer: 343 cm3

Answer: Both tanks will be half full fifteen minutes

after the first tank starts to fill or ten minutes after

the second tank starts to fill.

Each student may participate in more than one or in

none of the sports. The percentages might not add

up to be exactly 100%.

30 40 50 60 70 80 90 100


one's mental computation








Answer Key

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6


Visual

Multi-Step

Data/Investigations


What Do You Say?

How many cubes are in the

figure? Be sure to count

the hidden cubes.

In a triangle, the largest angle is 29

degrees more than the smallest. The

other angle is 13 degrees larger than

the smallest. What is the smallest

angle in the triangle?

In Pollville, records are kept on the previous

mayors. Here are the ages of the last six

mayors when they were voted into office:

45 88 37 42 41 44

Compare the mean and median. Which is a

more representative measure of the average

age? Why?

Draw a Diagram

There are 16 tennis players in a single

elimination tournament. How many tennis

matches will be played during the

tournament?

A students scores on 4 math tests were 89,

92, 95, and 85. What will he need to make

on the 5th test to have an average of 93? Is

this possible?

Margie had an average of 87 on

her first five test scores. On thenext two tests she did better. She

made 1 point higher on the

seventh test than she did on the

sixth. Her average on all seven

tests was now 90. What were her

two new test scores?

8/10/2019 G8Weeks1-9


MentalMath

6


1. Evaluate ifx= 3: 3x2+ 2

2. Solve forz:z

3 =

7

21

3. (23)2

4. Simplify: 2x(x 3y)

5. What percent of a day is18 hours?

6. Find the area of the shaded portion

of the rectangle:

7. True or false: 7 < 49

8. 3 (8)

9. Convert 14 milligrams to grams.

10. 12 13 12 3

Input

3

4

0

7

Output

7

9

1

1. Write all prime numbers between 15 and 25.

2. 3 is to 15 as 4 is to ____.

3. Express1

3as a decimal.

4. 31

3 4

1

8

5. 40,320 1.5

6. Evaluate 2a + 7bif a= 5 and b= 3.

7. 16 + 23

8. Find the prime factorization of 120.

9. Find the perimeter of a rectangle 2.5 cm by 1.5 cm.

10. Complete the table:

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________

10

10

5 5

m

m

m

m


8/10/2019 G8Weeks1-9


6Visual

Multi-Step

Data/Investigations



What Do You Say?

Mental Math

1. 29

2. 1

3. 26 or 64

4. 2x2 6xy

5. 75%

6. 25 square meters

7. False, the two are equal.

8. true

9. 0.014 g

10. 120


1. 17, 19, 23

2. 20

3. .333

4.55

4or 13

3

4

5. 26,880

6. 31

7. 12

8. 23 3 5

9. 8 cm

10. 15

Answer: 97 and 98

Answer: 46 degrees

Answer: 15

Answer: 104. This is possible if there is a bonus

problem on the test.

Answer: 35

Answer: The median is less sensitive to the

outlier, 88.











Answer Key

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7


Visual

Multi-Step

Data/Investigations


What Do You Say?

Add a square to the figure so that the area is 6 square

units and the perimeter does not change.

Pebble Pebble!

A pebble is thrown into a cylindricalwater pool 3 feet in diameter causing

the water to rise 0.0015 inches. What

is the volume of the pebble in cubic

inches?

The surface area of a cube is

486 square inches. What is the

number of inches in the length of

one of the edges?

From 1997-98

Mathcounts School Handbook

Guess and then Check

Jack has a total of 10 nickels and quarters. If

the value of the coins is $1.70, how many

quarters does he have?

You are given a scatter plot and told to

estimate and draw a line of best fit.

Explain how you do this.

Give an example of data that would show a

(1) positive relationship, (2) negative

relationship, (3) or no relationship when

displayed on a scatter plot.

8/10/2019 G8Weeks1-9


MentalMath

7


1. Solve forx:1

3x+ 7 = 1

2. Write 331

3% as a decimal.

3. How many quarters equal $20.75?4. A six-pack of soda sells for $2.28. What is the cost per can?

5. Write5

4as a percent.

6. Convert 1.23 !103to standard form.

7. Simplify: 130

8. Solve forx:1

4

x 8 = 12

9. 18 is between what two consecutive integers?

10. True or False: (0.2)(0.8) = 0.16

1. What is the mode for the following set of scores:

{75, 62, 71, 88, 73, 88, 72, 77}?

2. 3 7 4 (8 + 2) =

3. Give the 6th term in the sequence 1, 4, 9, 16

4. 6 is 15% of what number?

5. Simplify: (2x2)3

6. 75% of 19.00 =

7. Add four to the multiplicative inverse of

2

3 and simplify.

8. Draw an obtuse angle and estimate its measure.

9. For the given parallelogram determine the measure of

anglex.

10. What percent of 4 is 7?

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________


60 120

xx

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7Visual

Multi-Step

Data/Investigations



What Do You Say?

Mental Math

1. x= 18

2. .3

3. 88

4. $ .38

5. 120

6. 1,230

7. 1

8. 80

9. 4 and 5

10. True


1. 83

2. 19

3. 36

4. 40

5. 8x6

6. 14.25

7. 51

2

8. Answers will vary

( 90< measure of angle

8/10/2019 G8Weeks1-9



8


Visual

Multi-Step

Data/Investigations


What Do You Say?

The dot patterns show the first three square numbers.

Show the next two square numbers. Use exponents

to write each number.

Simplify the following expression:

x+ 4(y+ 8x)

Write the property that allows you to

complete each step (out to the side).

On five tests (on which scores could range

anywhere from 0 to 100, inclusive) Johnny

had an average of exactly 88. Find the lowest

score Johnny could have received on one test.

Make a Table

The sum of two brothers ages is 38. One

brother is ten years older than the other.How old is each brother?

Estimate the measure of the indicated angle

in degrees. Explain or show how you got

your estimate.

x

In the diagram, lines mand nare

parallel. The measure of angle 1 is 44

more than the measure of angle 2. Find

the smaller of the two angles.

1 2n

m

8/10/2019 G8Weeks1-9


8


1. 25 + 5

2. True or False:16

0 = 0

3. Solve forx:x

4 6 = 16

4. Express 2.3 !104in standard form.

5. In which quadrant does the ordered pair (3, 4) lie?

6. Convert 5,000,000 millimeters to kilometers.

7. Write 489,000 in scientific notation.

8. 19 23

9. 0 6

1

2 + 3

10. 11 7

1. Find the mean of 4, 6, 3, 12, 5.

2. Find the median of the numbers in Problem #1.

3. What are the next 2 numbers in the pattern?

1, 2, 4, 8 16, ___, ___

4. Order from least to greatest:

.5, .05, .5001, .49

5. Find the measure of anglex:

6. Simplify:

2x2y+ 7x+ 2x2yxy2

7. An elevator started at the first floor and went up 18 floors. It

then came down 11 floors and went back up 16. At what

floor was it stopped?

8. (3x2y)3

9. Find the area of a circle with radius of 8 cm.

10. What does area mean?

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________

MentaMath

80x


x

8/10/2019 G8Weeks1-9


8Visual

Multi-Step

Data/Investigations



Answer: 14 years, 24 years

What Do You Say?

135

Sample explanation: 90 + .5 ( 90) = 135

Mental Math

1. 20

2. False

3. 40

4. 23,000

5. II

6. 5 km

7. 4.89 !105

8. 4

9. 91

2

10. 18


1. 6

2. 5

3. 32, 64

4. 0.05, 0.49, 0.5, 0.5001

5. 100

6. 4x2y+ 7xxy2

7. 24

8. 27x6y3

9. 201 cm2

10. Number of square units needed to cover a

surface

42 52

x+ 4(y+ 8x)

=x+ 4y+ 4 8x Distributive Property

=x+ 4y+ 32x Substitution

=x+ 32x+ 4y Commutative Prop. of Add.

= 1x+ 32x+ 4y Multiplicative Identity

= (1 + 32)x+ 4y Distributive Property

= 33x+ 4y Substitution

100 88 5 = 440 440

100 400

100 40

100

400

Answer: The smaller angle is 68 degrees.










Answer Key

8/10/2019 G8Weeks1-9



9


Visual

Multi-Step

Data/Investigations


What Do You Say?

You have to wrap gift boxes for your

club project. Each box is 4.5 inches

wide, 7 inches long, and 4 inches tall.

What size rectangle do you need to cutto cover the box?

Gift wrap paper comes in sheets which

are 30 inches wide and 36 inches long.

How should you cut your rectangles to

make the best use of the paper?

If each circle has a diameter of 50 feet,

find the distance around the racetrack?

The data values below are the speeds (in

kilometers per hour) of ten trucks traveling

on Interstate 95.

80, 65, 70, 60, 60, 70, 73, 70, 59, 46

Interpret and construct a box plot. Analyze

the data. Compute the mean. How does the

mean compare with the median?

Guess and Check

Using the digits

0, 1, 2, 3, 4, 5, to fill in the

boxes. Make a

subtraction problem with

the smallest possible

answer.

Explain in words how you would solve:

n 8 = 12

Using Color Cubes

1. Make a rectangle that is1

4red,

1

4blue,

1

8yellow

and the rest green.


5yellow,

1

2blue

and3

10red.


3blue,

1

4red,

1

6yellow and the rest green.

How many cubes of each color are in the aboverectangles?

Is there more than one possible solution?

8/10/2019 G8Weeks1-9


MentalMath

9


1. ( )3 4

2. Simplify: 4(2x 4)

3. If a $36 shirt is on sale for 25% off, what is the sale price?

4.

5. 8 + 15.32

6. If 7 out of 10 students like pizza, how many students should

like pizza in a class of 30?

7. Solve forx: x2= 121

8. -250 10 x 3 + 7

9. 3.5 + 8

10.3

4

3

$%

&'

1. Compare perimeter and circumference.

2. ____ 4 + 6 = 16

3. Determine the measure of anglex.

4. Simplify:

(2 !103)(4 !108)

5. 3

10

1

2

6. How much less is the square root of 64 than 62 4?

7.5

6

1

4

8. 16 + (20 6) (6 + 2) + 31

9. Find the mean, median, and mode for the following set of data:

{ 0.2, 0.4, 0.1, 0.6, 1.2, 1.1 }

10. What is the sum of the first 5 square numbers?

Write answers here:

1. ___________

2. ___________

3. ___________

4. ___________

5. ___________

6. ___________

7. ___________

8. ___________

9. ___________

10. __________


0

16

x

60

x

8/10/2019 G8Weeks1-9

27/27

9Visual

Multi-Step

Data/Investigations



What Do You Say?

Mental Math

1. 1

2. 8x 16

3. $27

4. 0

5. 7.32

6. 21

7. 11, 11

8. 68

9. 4.5

10.27

64


1. Distance around a polygon vs. the distance

around a circle.

2. 40

3. 30

4. 8 !1011

5. 8

10 =

4

5

6. 136

7.20

6 = 3

2

6 = 3

1

3

8. 30

9. mean: 0.6, median: 0.5, mode: none

10. 55

There is more than one solution possible depending

on the total number of cubes used to make each

rectangle. A possible solution for each follows:

1. 2 red, 2 blue, 1 yellow, 3 green2. 2 yellow, 5 blue, 3 red

3. 4 blue, 3 red, 2 yellow, 3 green

Answer: 200 + 50 !3.14 is about 357 feetabout120 yards.

LE: 46

UE: 80

LQ: 60

UQ: 70

Median: 67.5

Mean: 65.3 They are very close.

Answer: 301

254

47

The smallest sheet of paper that will work is 11.5 in.

!17 in. If you cut the large sheet of paper into foursheets, each 18 !15, the least paper will be wasted.

Add eight to both sides of the equation.

n = 20

40 50 60 70 80










Answer Key

G8Weeks1-9

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