7th Grade Review

Proportions

100

Do the following ratios form a proportion 

4/10 and 8/20 

Yes

200

Do the following ratios form a proportion?

5/15 and 3/9 

No

300

Solve the following proportion:

2/3 = x/18

x = 12

400

Describe the graph of a proportional relationship. 

A straight line through the origin

500

Solve the following proportion:

18/3 = 24/x

x = 4

Expressions and Equations

100

Solve for x.

5x + 4 = 19

x = 3

200

Solve for x

x/3 + 6 = 10

x = 12

300

Simplify the following expression.

4x + 5 + 2x - 3

6x + 2

400

Simplify the following expression

2(2x + 3 - 4y)

4x + 6 - 8y

500

Simplify the following expression:

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

5x + 6 - 12y

Shapes

100

Find the diameter of a circle with a radius of 2cm 

4cm

200

Find the area of a circle with a radius of 6cm. (Use 3.14 for pi) 

Calculator allowed

113.04cm²

300

Find the circumference of a circle with a diameter of 10cm. (Use 3.14 for pi)

31.4cm

400

Find the volume of a cube with a height of 8in. (Calculator allowed)

512in³

500

Find the surface area of a cube with a height of 8 in. (Calculator allowed)

384 in²

Integers

100

-3 * -2 =

6

200

-8 * 9 =

-72

300

-12 + 20 = 

8

400

5 - (-2) = 

7

500

-12 - (-4) = 

-8

Misc.

100

12 * 7 = 

84

200

Solve the equation

x/6 = 12 

x = 72

300

5 out 20 is equal to what percentage? 

25%

400

Find the unit rate:

$12 for 3 burgers 

$___ per burger

$4 per burger

500

Convert 0.5 to a percent and fraction

50% and 5/10 (50/100) (1/2)