8th Grade Math Review

Integers

100

742-375=?

367

200

200+348=? 

548

300

-83-59=?

-142

400

12x6=?

72

500

100/20

5

Exponents

100

2⁶=?

64

200

5^x=625

x=?

4

300

Convert to exponential Form

6x6x6x6x6x6

6⁶

400

10⁰

1

500

(1\4)³

1\64

Area and perimeter

100

What is the formula to find the area of a triangle?

A= 1/2 x Base x Height

200

A hotel lobby measures 40 yards by 60 yards. Find the area.

2,400 square yards

300

What is the area of a triangle that has a base of 5 inches and a height of 6 inches?

15 inches squared

400

The state of Colorado is nearly rectangular. It is about 589 kilometers by 456 kilometers. What is the perimeter of Colorado?

2,090 kilometers

500

Jessica wants to put a fence around her 10 foot by 13 foot rectangular garden. How many feet of fencing will she need?

46 feet of fencing

Equations

100

Solve for n. 

n+6=16

n=10

200

Solve for n. 

20=n-25

n=45

300

Solve for n. 

5n=60

n=12

400

Solve for n.

n/7=7

49

500

2n+5=9

n=1

Circles

100

The distance from the center of a circle to the outside, also half of the diameter

Radius.

200

The radius of a circle is 28cm. What is the circle's diameter?

56cm

300

The diameter of this circle is 16cm. find the radius.

8 cm

400

what is 3.14 or 22/7

pi 

500

The total amount of space inside of a circle

Area