Integer Masters
Expressions & Equations
Proportional Power
Geometry & Probability
Brain Busters
100

−5 + 8

3

100

Simplify: 3x + 2x

5x

100

If 1 notebook costs $2, how much do 5 notebooks cost?

$10

100

Find the area of a triangle with base 8 and height 5.

20

100

What is 15% of 200?

30

200

7 − 12

−5

200

Solve: x + 7 = 15

8

200

A car travels 180 miles in 3 hours. Find the unit rate.

60 mph

200

What is the circumference formula for a circle?

C = 2πr

200

Evaluate: 3² + 4²

25

300

−4 × 6

−24

300

Solve: 2x = 18

9

300

Solve the proportion: 2/5 = x/20

8

300

A bag has 5 red and 5 blue marbles. What is the probability of picking red?

 1/2

300

A number is divisible by both 3 and 4. Name one possibility between 1 and 20.

12

400

−36 ÷ 9

 −4

400

Evaluate: 4a − 3 when a = 5

17

400

A shirt originally costs $40 and is discounted 25%. What is the sale price?

$30

400

What is the volume of a rectangular prism with dimensions 3 × 4 × 5?

60 cubic units

400

Write 0.875 as a fraction.

7/8 

->  0.875 = 875/1000

->   875 ÷ 125 = 7
->   1000 ÷ 125 = 8

875/1000 = 7/8

500

−3(4 − 7)

9

500

Solve: 3x − 4 = 17

7

500

A recipe for 4 people uses 3 cups of rice. How much rice is needed for 10 people?

7.5 cups

500

A right triangle has legs 6 and 8. What is the hypotenuse?

10

500

A store earns $250 on Monday and twice as much on Tuesday. How much total?

$750

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