Illustrative Math Equations and Expressions

Select all the equations represented by this tape diagram.

• 3.9 + ? = 8.6

• 8.6 + 3.9 = ?

• 8.6 = ?+3.9

• 8.6 − 3.9 = ?

• ? − 3.9 = 8.6

How would you solve for the question mark?

87 ⋅ ? = 9,526

Select all the equations represented by this tape diagram.

• 4 + 3 = ?

• 3 + 3 + 3 + 3 = ?

• ? = 4 x 3

• ? = 3 x 3 x 3 x 3

• 4 = ? ÷ 3

Here are two diagrams. One represents 2+5=7. Which one shows 2 + 5 = 7?

• Left

• Right

The equation for the table below is y=2x+5, fill in the missing values.

c

d

e

f

7

0

4

3

9

-1

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80

Choose the algebraic expression that matches the verbal phrase.

• A) x + y

• B) x - y

• C) x * y

• D) x / y

Please solve this equation

^p/₅ = 7

• p = 35

• p = 12

• p = 2

• None of these match my answer

Please solve this equation

23 = x + 7

• x = 16

• x = 30

• x = 161

• None of these match my answer