A letter that replaces a number

Module 7.3 Topic A Flashcards

1

5(2x + 6)

10x + 6
10x + 30
40x
16x

2

4y - 3(2y - 6) + 4

2y + 14
-2y + 14
-2y + 22
2y + 22

3

6(x + 2) + 3x is an example of

Expanded Form
Standard Form

4

What is the coefficient in the following expression.

w
3
3 and 4
4

5

5t + 30

5(t + 30)
5(t + 6)
5t(30)
5(t) + 30

6

1/2(6r)

12
12r
3r
6

7

8d(-3)

5d
-5d
-24d
24d

8

-1/2(s) - 1/2 + 3/2(s) - s

-1/2
4/2(s) - 1/2
s - 1/2
5/2(s) - 1/2

9

4x + 7y + 19z - 13 is an example of

Expanded Form
Standard Form

10

9(2d - 3)

45d
-9d
18d - 27
18d + 27

11

7 times the sum of 4x and 8 minus 2 times the difference of 3x and 4

46x + -4
22x + 46
34x + 2
31x + 2

12

1/5z - 12 + 3/5z + 3

4/10z + -15
-4/10z + -9
4/10z + 15
4/5z + -9

13

What is a variable

A letter that replaces a number
A number
A number being multiplied by a letter.

14

4x + 8 + 8x

12x + 8
20x
12x - 8

15

7 times the sum of 4x and 8 minus 2 times the difference of 3x and 4

(7 ∙ 4x) + (8 - 2) ∙ (3x - 4)
7 ∙ 4x + (8 - 2) ∙ 3x - 4
7(4x + 8) - 2(3x - 4)
7 ∙ 4x + 8 - 2 ∙ 3x - 4

16

-2(4z - 6)

-8z + -12
-8z + 12
8z + -12
8z - 12

17

3(2x)

5x
x
3 + 2x
6x

18

4t + 18

4(t + 18)
2(2t + 9)
4(2t + 14)
2(2t + 18)

19

7x - (3x - 7)

4x - 7
10x - 7
4x +7
10x - 7

20

3t - 45

3(t - 13)
3(t - 15)
3t(-45)
3(t) - 45

21

What is an expression?

A mathematical problem without an equal sign
A mathematical problem with an equal sign

22

2(5t - 3) - 2t

-12t -6
6t
12t - 6
8t - 6

Module 7.3 Topic A

Questions 22

Module 7.3 Topic A

Questions 22