Quarter 2 - 7th Grade Math Review

Circumference

100

Describe what the circumference of the circle is:

Finding the distance of the outside of the circle (Perimeter of the outside)

200

What is one of the formulas for finding the circumference of a circle?

C = pid  and C = 2pir

300

If a circle has a diameter of 10 inches, what is the circumference?

31.4 inches

400

If a circle has a radius of 4 inches, what is the circumference of the circle?

25.12 inches

500

If the circumference of a circle is 81.64 inches, what is the radius of the circle?

13 inches

Area

100

What is the formula for the area of a circle?

A = pir^2

200

If a circle has a radius of 5 cm, what is the area of the circle?

78.5 cm^2

300

If a circle has a diameter of 30 cm, what is the area?

706.5 cm^2

400

If a circle has an area of 50.24 inches², what is the radius?

4

500

If a circle has an area of 153.86 cm² - what is the diameter?

14 cm

Integers

100

2 + (-5)

-3

200

(-4) + (-8)

-12

300

(-3) + (+8)

+5

400

(-9) - (-4)

-5

500

8 - (-10)

18

Fractions & Decimals

100

Change to a Decimal:

3/10 

0.3

200

Write a fraction that equals 0.5

Various answers

300

Change to a Fraction:

0.35

35/100

400

Change to a Decimal:

1 2/3

1.6666 (repeating)

500

Change to a Fraction:

0.113

113/1000

Decimals & Percents

100

Change to a Percent:

0.8

80%

200

Change to a Decimal:

52/100

0.52

300

Change to a Decimal:

115/1000

0.115

400

Change to a Percent:

0.02

2%

500

Change to a Decimal AND Fraction:

1%

1/100 and 0.01