Solve Linear Equations Chapter 1.3. Equations and Expressions.
Grade 6 Expressions and Equations: Expression Cards
Transcript of Grade 6 Expressions and Equations: Expression Cards
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Grade 6 Expressions and Equations:
Interpreting Algebraic Expressions Expression Cards
E1
(𝒏 + 𝟔)
𝟐
E2
𝟑𝒏𝟐
E3
𝟐𝒏 + 𝟏𝟐
E4
𝟐𝒏 + 𝟔
E5
𝟐(𝒏 + 𝟑)
E6
𝒏
𝟐+ 𝟔
E7
(𝟑𝒏)𝟐
E8
(𝒏 + 𝟔)𝟐
E9
𝒏𝟐 + 𝟏𝟐𝒏 + 𝟑𝟔
E10
3+n
2
© 2015 National Council of Teachers of Mathematics
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E11
𝒏𝟐 + 𝟔
E12
𝒏𝟐 + 𝟔𝟐
Expression Card
Expression Card
Expression Card
Expression Card
Expression Card
Expression Card
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Grade 6 Expressions and Equations:
Interpreting Algebraic Expressions Word Cards
W1
Multiply n by two
then add six.
W2
Multiply n by
three then
square the answer.
W3
Add six to n
then multiply by
two.
W4
Add six to n
then divide by
two.
W5
Add three to n
then multiply by
two.
W6
Add six to n
then square the
answer.
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
W7
Multiply n by two
then add twelve.
W8
Divide n by two then add six.
W9
Square n then
add six.
W10
Square n then
multiply by
nine.
Word Card
Word Card
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Word Card
Word Card
Word Card
Word Card
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Grade 6 Expressions and Equations:
Interpreting Algebraic Expressions Table Cards
T1
n 1 2 3 4
Ans `14 16 18 20
T2
n 1 2 3 4
Ans 81 144
T3
n 1 2 3 4
Ans 10 15 22
T4
n 1 2 3 4
Ans 3 27 48
T5
n 1 2 3 4
Ans 81 100
T6
n 1 2 3 4
Ans 10 12 14
T7
n 1 2 3 4
Ans 4 5
T8
n 1 2 3 4
Ans 6.5 7 7.5 8
Table Card
n 1 2 3 4
Ans
Table Card
n 1 2 3 4
Ans
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Table Card
n 1 2 3 4
Ans
Table Card
n 1 2 3 4
Ans
Table Card
n 1 2 3 4
Ans
Table Card
n 1 2 3 4
Ans
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Grade 6 Expressions and Equations:
Interpreting Algebraic Expressions Area Cards
A1
A2
A3
A4
A5
A6
A7
A8
Area Card
Area Card
© 2015 National Council of Teachers of Mathematics
www.nctm.org/profdev
Area Card
Area Card
Area Card
Area Card
Grade 6 Expressions and Equations Relational Thinking
True or False:
471 – 382 = 474 – 385
674 – 389 = 664 – 379
583 – 529 = 83 – 29
37 x 54 = 38 x 53
5 x 84 = 10 x 42
64 ÷ 14 = 32 ÷ 28
42 ÷ 16 = 84 ÷ 32
What is the value of variable?
73 + 56 = 71 + d
67 – 49 = c – 46
234 + 578 = 234 + 576 + d
94 + 87 – 38 = 94 +85 – 39 + f
92 – 57 = 94 – 56 + g
68 + 58 = 57 + 69 – b
56 – 23 = 59 – 25 – s
Grade 6 Expressions and Equations Equations and Statements
Align the equations to the statements. If a statement or equation does not have a match, create the appropriate statement or equation so that every card has at least one match.
Equations
a = the number of apples bought b = the number of bananas bought
x = the cost of an apple in dollars y = the cost of a banana in dollars
y = 2x b = 2a
a = 𝑏
2
y = 𝑥
2
x = 2y ax = 5
ax + by = 5
b + a = 5
x = 𝑦
2
b = 2
Statements
I bought twice as many bananas as apples.
The apples I bought cost $5.
Altogether I bought 5 apples and bananas.
I paid $5 for all the apples and bananas I bought.
Bananas cost twice as much as apples.
Bananas cost $2.
Apples and bananas cost the same.
Apples cost half as much as bananas.
Grade 6 Expressions and Equations Solving Equations by Strip Diagram
Solve the following problems using the Strip Diagram Method. Consider a variety of ways to set-up the algebraic equation to satisfy the solving of the problem.
1. There are 50 children in a dance group. If there are 10 more boys than girls, how many girls
are there?
2. Ann has three times as much money as Brenda. Brenda has $200 less than Carol. Carol has
$50 more than Ann. Find the total amount of money that Ann, Brenda, and Carol have.
3. The ratio of Sam’s money to Mel’s money was 4:1. After Sam spent $26, Sam had $2 less than Mel. How much money did Sam have at first?
4. John is four times as old as his son. If their total age 10 years ago was 60, find their present ages.
5. A box contains a total of 200 blue, yellow, and orange beads. Twice the number of blue
beads is 10 more than the number of yellow beads. There are 50 more yellow beads than orange beads. How many blue beads are there in the box?
Grade 6 Expressions and Equations Solving Equations Using Cover up Method
1. 3(𝑥 − 10) = 15
2. 3(𝑥 + 10) = 15
3. 3 + 𝑥
10= 15
4. 18
𝑥+ 12 = 15
5. 34 − 2𝑥+ 6
2= 4
6. 34 − 2𝑥+6
2= −4
7. 21 = 12 + 3𝑥
8
8. 12 = 21 + 3𝑥
8
9. 5 + 𝑥
6= 17
10. 5 + 6
𝑥 = 17
11. 5 − 𝑥
6= 17
12. 5 − 6
𝑥 = 17
13. 3 = 12
𝑥+1
14. 3 = 𝑥+1
12
15. 3 = 12
𝑥+7
16. 3 = 𝑥+7
12