Grade 7 Unit 1 - 5 Review

U1&2 Scale & Proportions

5

What is a scale drawing?

Proportional drawings enlarging or shrinking by the same scale.

10

If k = 5 and x = 5, find y.

y = 25

15

Find the x to make the equation true: 3/5 = x/25

x = 15

20

If x is 10 and y is 100 what is k?

k = 10

25

A picture has a length of 10 in. and a width of 20 in. If the new drawing has a scale of 2.5, what is the new side lengths and widths?

l = 25 in; w = 50 in

U3 Circles

5

Define circumference.

Circumference is the perimeter of a circle.

10

If the diameter is 47 meters, what is the radius?

23.5 meters

15

Find the area of a circle with a radius of 10 in. (Use 3.14 for pi. Must have the right units!)

314 square inches

20

What is the circumference of a circle with a radius of 22.5 cm?

141.3 centimeters

25

What is the area of a circle with a diameter of 33 inches? (Use 3.14 for pi. Must have the right units!)

855.3 square inches

U4 Ratios & %

5

What is 50% of 1,000?

500

10

What is 32% of 50?

16

15

Convert 0.367 into a fraction and a percentage.

367/1,000 and 36.7%

20

A shirt costs $40 and is on sale for 20% off. What is the discounted price?

$32

25

The price of gas was $2.00 a gallon. It increased by 50%. What is the price of gas now?

$3.00

Unit 5 Integers

5

What is the definition of an integer?

All whole numbers including negative and positive numbers.

10

Solve 50 x -36

- 1,800

15

What is the absolute value: |-36.654|

36.654

20

Solve for x: (2/3) + x = (1/3)

x = -(1/3)

25

DOUBLE POINTS: Solve 12/(-24)?

-(1/2)

Random

5

Fill in the missing song lyric: "I don't know about you, but I'm feelin ______."

22

10

What was the name of the musical / dance app before it was called Tik Tok,

Musical.ly

15

What is the minimum age for Tik Tok?

13

20

What is 36.1 + 0.26657

36.36657

25

If Miss Saryian is 26, what year was she born?

1996