W3 - Lesson 4: Number Patterns, Magic Squares, and Problem ...€¦ · Magic Squares In a magic...

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Mathematics Grade 6 W3 - Lesson 4: Number Patterns, Magic Squares, and Problem Solving V5-07

Transcript of W3 - Lesson 4: Number Patterns, Magic Squares, and Problem ...€¦ · Magic Squares In a magic...

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Mathematics Grade 6

W3 - Lesson 4: Number Patterns, Magic Squares, and Problem Solving

V5-07

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Mathematics Grade 6Version 5Preview/Review W3 - Lesson 4

Publisher: Alberta Distance Learning CentreAuthor: Elgin PawlakIn-House Teacher: Sue Rees

Project Coordinator: Dennis McCarthyPreview/Review Publishing Coordinating Team: Nina Johnson, Laura Renkema, and Donna Silgard

W1 - Lesson 1 ............................................................. Basic Facts, Basic Operations, and IntegersW1 - Lesson 2 ............................Place Value, Whole Numbers, Decimals, and Common FractionsW1 - Lesson 3 ..................................................................Improper Fractions and Mixed NumbersW1 - Lesson 4 ....................................................................................................Ratios and PercentsW1 - Lesson 5 ...........................................................................Number Operations with DecimalsW1 - QuizW2 - Lesson 1 ........................................................... Factors, Multiples, and Prime FactorizationsW2 - Lesson 2 ................................................................................................. Metric MeasurementW2 - Lesson 3 .................................................................................................... Perimeter and Area W2 - Lesson 4 ...........................................................................................Surface Area and VolumeW2 - Lesson 5 ..........................................Working with Angles and Drawing Objects and ShapesW2 - QuizW3 - Lesson 1 ......................................................................................................... TransformationsW3 - Lesson 2 ...........................................................Bar Graphs, Line Graphs, and Circle GraphsW3 - Lesson 3 .................................................................................. Collecting and Analyzing DataW3 - Lesson 4 ......................................... Number Patterns, Magic Squares, and Problem Solving W3 - Lesson 5 ..........................................................................................Probability and OutcomesW3 - Quiz

Materials Required: A textbook is not needed. This is a stand-alone course.

Important Concepts of Grade 6 Mathematics

Distance

Learning

Centre

Alberta

LEARNING

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Preview/Review Conceptsfor

Grade Six Mathematics

W3 - Lesson 4: NumberPatterns, Magic Squares,

and Problem Solving

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OBJECTIVES

By the end of this lesson, you should

• discover patterns in groups of numbers

• use magic squares

• find solutions to problems using patterns

• write rules to explain number patterns

GLOSSARY

magic square - a square ofnumbers in which the sum ofeach column and each row is thesame

pattern - repeated design;repetition of a sequence ofnumbers

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

W3 - Lesson 4: Number Patterns, Magic Squares, andProblem Solving

Welcome to W3 - Lesson 4! Patterns of numbers can be fascinating! Inthis lesson, you will use Magic Squares, T-tables, and charts. You willsolve problems by using patterns, and you will write rules to explainvarious patterns of numbers.

Number Patterns and Rules to Predict the Outcome

1. Interesting Number Patterns: Complete the number charts below. Theexample demonstrates the procedure.

Example:

1 9 + 2 = 1112 9 + 3 = 111

123 9 + 4 = 1 1111 234 9 + 5 = 11 111

12 345 9 + 6 = 111 111

×××××

a.

b. 9 9 + 7 =

9 98 + 6 =

9 987 + 5 =

9 9 876+ 4 =

9 98 765 + 3 =

9 987 654 + 2 =

¥

¥

¥

¥

¥

¥

1 8 + 1 =

12 8 + 2 =

123 8 + 3 =

1 234 8 + 4 =

12 345 8 + 5 =

123 456 8 + 6 =

¥

¥

¥

¥

¥

¥

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c.

d.

2.Write the next three numbers in each of the number sequences listedbelow.

Example: 5, 10, 15, , , (Answer: 20, 25, 30)

a. 1, 2, 3, 4, , , ,

b. 2, 4, 6, 8, , , ,

c. 1, 2, 3, 10, 4, 5, 6, 20, 7, , , ,

d. 5, 9, 17, 33, , , ,

e. 3, 6, 9, 12, 15, , , ,

f. 3, 4, 6, 9, 13, 18, , , ,

g. 6, 20, 8, 22, 10, 24, 12, , , ,

h. 10, 21, 43, 87, , , ,

i. 100, 99, 97, 94, 90, 85, , , ,

j. 1, 4, 9, 16, , , ,

37 3 =

37 6 =

37 9 =

37 12 =

37 15 =

37 18 =

×

×

×

×

×

×

9 1 1 =

9 21 1 =

9 321 1 =

9 4 321 1 =

9 54 321 1 =

9 654 321 1 =

¥ -

¥ -

¥ -

¥ -

¥ -

¥ -

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

3. Write a rule that explains the number pattern that relates the first twocolumns to the third column.

Example 1

Rule: Add the number in Column 1 to the number in Column 2 to getthe number in Column 3.

Example 2

Rule: Multiply the number in Column 1 by the number in Column 2and add 1 to get the number in Column 3.

a.

Rule:

1nmuloC 2nmuloC 3nmuloC1 2 35 3 612 3 74 4 716 3 91

1nmuloC 2nmuloC 3nmuloC4 2 71 4 33 2 55 3 412 8 51

1nmuloC 2nmuloC 3nmuloC1 2 35 3 82 3 54 4 86 3 9

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b.

Rule:

c.

Rule:

1nmuloC 2nmuloC 3nmuloC1 4 72 3 93 4 514 5 325 5 82

1nmuloC 2nmuloC 3nmuloC05 5 904 5 703 6 402 5 301 5 1

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

d.

Rule:

e.

Rule:

1nmuloC 2nmuloC 3nmuloC2 4 215 3 614 8 426 7 628 9 43

1nmuloC 2nmuloC 3nmuloC42 8 503 6 784 8 845 6 1127 8 11

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f.

Rule:

g.

Rule:

1nmuloC 2nmuloC 3nmuloC7 6 39 7 421 8 631 5 0141 5 11

1nmuloC 2nmuloC 3nmuloC2 3 514 3 125 4 726 4 037 8 54

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

4. For the following T-tables, write the rule that relates the number in thefirst column with the number in the second column. Then, complete theT-table by filling in the blank spaces with the correct numbers.

Example:

Rule: Double the number in column A and add one toget the number in column B.

a. Rule:

b. Rule:

A B

1 05.0$

2 00.1

3 05.1

4

5

6

A B

2 53 74 95 11

A B

01 05

11 55

21 06

31

41

51

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c. Rule:

d. Rule:

A B

1 mk57

2 mk051

3 mk522

4

5

6

A B

9 82

8 52

7 22

6 91

5

4

3

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

e. Rule:

f. Rule:

A B

44 9

04 8

63 7

23 6

02

61

21

A B

2 9

4 31

7 91

8 12

11

21

31

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Magic Squares

In a magic square, the sum of each column and each row is the same.When the magic square has nine cells, the sums of the diagonal numbersare also identical to the sums of the rows and columns.

All columns and rows add up to 15. Eventhe diagonals add up to 15.

1. The rows and the columns of this magic square have a sum of 36. Thediagonals also add up to 36. Use these numbers to complete the MagicSquare: 2, 4, 6, 10, 12, 14, 18, 20, 22.

Write the values below.

A =_____

B = _______

C = _______

D = _______

E = _______

4 3 8

9 5 1

2 7 6

A B 20

C 12 2

4 D E

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

2. Each of the rows and the columns of this magic square has a sum of 36.The diagonals do NOT add up to 36. Use these numbers to completethe Magic Square: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.

Write the values below.

F = _______

G = _______

H = _______

R = _______

J = _______

3. Each row and column of this magic square has a sum of 180. Thediagonals do NOT add up to 180. Use these numbers to complete theMagic Square: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80,85.

Write the values below.

K = _______

L = _______

M = _______

N = _______

P = _______

F G 3

17 H 12

1 13 6

11

R

16

7J 4 15

40 70 15

85 25 60

L 65 30

K

10

M

P50 20 N

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4. Arrange the following numbers to create a magic square that has a sumof 45 in each column and row. The diagonals also have a sum of 45.Put the number 15 in the middle square. Use the following numbers:11, 12, 13, 14, 15, 16, 17, 18, 19.

Assignment 3: Problem Solving

1. Find the correct numbers to make true statements of these additionand subtraction questions.

Addition

a. Find the value for A 937

A = _______ 8B

B = _______ 109

C = _______ + 3 C85

D = _______ 8 5D7

15

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

b. Find the value for 6 74E

E = _______ 2 F7

F = _______ 63

G = _______ + 38 G28

H = _______ HI 174

I = _______

Subtraction

c. Find the value for 9A 74B

A = _______ – 6 C23

B = _______ E1 1D7

C = _______

D = _______

E = _______

d. Find the value for J6 FG7

F = _______ – H 975

G = _______ 79 48I

H = _______

I = _______

J = _______

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2. Archery Contest: Using this target, William Tell was able to scoreexactly 100 points. How many arrows were necessary to get 100 pointsand on what numbers did the arrows stick?

3. Coins: Darlene has 27 coins in her pocket. The coins are a mixture ofpennies, nickels, dimes, and quarters. The coins have a total value of$3.22. What coins does Darlene have? (There is more than one correctanswer.)

15

19

17

1618

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

4. A theatre had 100 adults, teens, and children in the audience. Theprices of the tickets were Adults $10.00, Teens $3.00, and Children(under 12) $0.50. The theatre collected a total of $100.00 from the 100people. How many adults, teens, and children were in the audience?

5. Age Problem: The other day Bob met an old friend named Sally whomhe had not seen in years. “You don’t look a day older than you did 20years ago,” said Bob. Sally replied, “The last time I saw you, I was 4times as old as you were then, and I’m still twice as old as you are now.”Can you find the ages of Bob and Sally?

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Homework Assignment

1. Write the next three numbers in each of the number sequences below.

a. 4, 10, 22, 46, , ,

b. 99, 97, 94, 90, , ,

c. 7, 14, 21, , ,

d. 21, 23, 25, 41, 43, 27, 29, 31, 45, , ,

e. 516, 256, 128, 64, , ,

f. 3 645, 1 215, 405, 135, , ,

g. 5, 10, 9, 18, 17, 34, 33, , ,

h. 8, 16, 24, , ,

i. 7, 35, 30, 150, 145, 725, , ,

2. Complete the T-tables.

a. Rule:A B

1 31

2 42

3 53

4 64

5

6

7

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

b. Rule:

c. Rule:

d. Rule:

A B

2 02

4 63

6 25

8 86

01

21

41

A B

51 92

41 72

21 32

11 12

6

5

A B

021 51

011 41

09 21

08 11

03

02

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3. Money Problem: A boy named Muscle Jones was hired by Mrs. Boss towork 2 hours a day for 15 days. Mrs. Boss gave Muscle Jones a choice.He could be paid $5.00 an hour ($10.00 a day) or he could be paid 1¢ forday one, 2¢ for day two, 4¢ for day three, 8¢ for day four … (the valuedoubling each day for 15 days).

a. How much money will Muscle Jones make at $5.00 an hour?

b. How much will Muscle Jones make at 1¢ the first day and doubleddaily for 15 days?

c. What is the difference in the two values in 3a and 3b?

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Preview/Review Concepts W3 - Lesson 4 Mathematics Grade 6

Self-Evaluation

Ask yourself some important questions. Write your answers insentences for your teacher.

1. In this lesson, what part of your work was excellent?

2. In this lesson, what part of your work needs improvement?

3. If you want help for some of the work in this lesson, ask your teacherin this space.