Q3 IA Review

Distributive Property

100

Simplify the following expression: 

10(s + 2) =

10s + 20 

200

Simplify the following expression: 

8(g - 4) =

8g - 32 

300

Simplify the following expression: 

6(6 - x) =

36 - 6x 

400

Simplify the following expression: 

2(7 - s) =

14 - 2s 

500

Rachel was asked to simplify the following expression: 10 (x - 3). She got 10x - 3 as a solution. Is Rachel correct or incorrect? Explain. Make sure to use the word distribute in your response. 

Rachel is incorrect, because she forgot to distribute the 10 to the 3. The actual answer should be 10x - 30 

Evaluating Multivariable Expressions

100

Evaluate      xy + 8       when x = 2 and y = -4

0 

200

Evaluate r² - m + 4m      when r = 7 and m = 3 

58 

300

Evaluate p - x / 5      when p = 10 and x = 5

9 

400

Evaluate j/3 + 12 - h      when j = 24 and h = 2

18

500

0.2m + 1 - 20n     when m = 20 and n = 1/4

0

Writing Numerical Expressions

100

The product of 9 and x

9x 

200

3 less than g

g - 3

300

k less than 15

15 - k 

400

The quotient of 18 and b    

18/b 

500

5 less than the quotient of a number q and 25

(q/25) - 5 

One-Step Equations: Addition and Subtraction

100

Solve for x: 

x + 3 = 18 

x = 15

200

Solve for y: 

y - 50 = 100

y = 150 

300

Solve for g: 

24 + g = 2 

g = -22 

400

Solve for x: 

-9 + x = 0 

x = 9 

500

Solve for p: 

-6 - p = 3 

p = -9 

One-Step Equations: Multiplication and Division

100

4x = 24 

x = 6 

200

Solve for y: 

y/5 = 3 

y = 15 

300

Solve for c: 

24 = 6c

c = 4 

400

Solve for j: 

6 = j/3

j = 18

500

Solve for x: 

5x = -25 

x = -5