Grade 8 Math

Squares & Roots

100

This is the answer to 3 squared.

What is 9

200

This is the answer to 6 squared.

What is 36

300

This is the answer to 12 squared.

What is 144.

400

This is the square root of 25

What is 5

500

The square root of 73 is between which two whole numbers?

What is 8 and 9

Percents/Fractions

100

This is 25% written as a decimal.

What is 0.25?

200

1/4 is what decimal?

.25

300

No Calc.

write 2/3 written as a decimal. Round to nearest tenth place.

.6 repeating

400

No Calc.

Write 2^-3 as a fraction.

1/ 8

500

Change 7/8 to a fraction.  Round to nearest hundredth.

no calc

.875

Equations

100

.2x -1.5 = 8.9

Solve for x

52

200

x + 5 = 3x -1

Solve for x

3

300

x + 4 = -x - 4

-4

400

2 - 3x = -x - 8

x = 5

500

3/4x -18 = 1/4 x - 4

28

Scientific Notation

100

No Calc

Write in standard form.  1.34 x 10⁵

134,000

200

No Calc.  

Write in standard form.  2.03 x 10³.

2,030

300

No Calc

Write in scientific notation.  503, 000, 000

5.03 x 10⁸

400

No Calc.

Write in scientific notation.  .0009876

9.876 x 10^-4

500

(1.03 x 10³) +  (9.75 x 10⁴).

Write answer in scientific notation.

1.9853 x 10⁵

Miscellaneous

100

If y=2x, and x=3, then this is what y equals.

What is 6.

200

Distribute.

-2(3x + 7)

-6x - 14

300

-3 (-2b - 5c)

Distribute no calc

6b + 15c

400

Estimate the square root of 15

3.87

500

(3,4) (6,8)

Find slope.  Simplify.

4/3