7th Grade Math: Jeopardy Review

Ratios and Proportions

100

8/15 = 24/x

x = 45

200

The value of the ratio 3/2 : 2 is

3/4

300

Are the ratios proportional? 

6:9 and 12:18

Yes, the ratios form a proportion. Using the Cross Products Property, we find 108=108.

400

8/x = 1/3

x = 24

500

Are the ratios proportional?

2:3 and 4:5

No, the ratios are not proportional. Using the Cross Products Property, we find the values of 10 and 12, which are not equivalent.

Equations and Expressions

100

x/5 = -32

x = -160

200

Simplify: 8x + 5 - 5x - 7

3x - 2

300

Solve: 2x + 6 = 32

x = 13

400

Solve: 3(x - 2) = 2x + 4

x = 10

500

Find the value of the expression when x=8 and y=-4. 

-x² + 12 ÷ y

-67

Rational Numbers and Integers

100

Use a number line to find the sum: -2 + 6

4

200

Find: -8 - (-13)

5

300

Find: -6(-3 + 4)+6

0

400

Find: 250 + 3(-50) + 75

175

500

Find 6/5 ÷ (=4/3)

-9/10

Geometry

100

What is the formula for the area of a triangle?

A=1/2bh

200

Find the area of a triangle with base 10 feet and height 6 feet.

30 ft²

300

A rectangular prism has a length of 5 cm, width of 3 cm, and height of 4 cm. What is its volume?

60 cm³

400

A rectangular prism has a volume of 120 in³. If the length is 10 inches and the width is 3 inches, what is the height?

The height is 4 inches.

500

Find the area of a circle with a circumference of 50.24 inches.

A = 200.86 inches²

Number Sense

100

Which is greater: 2/3 or 0.65?

2/3

200

Evaluate: -4²

-16

300

What is the value of |−8|?

8

400

Arrange from least to greatest: −1.2, −1.02, −1.12

-1.2, -1.12, -1.02

500

A number is multiplied by -3 and the result is 18. What is the number?

-6