Math Practice Quiz Unit 1 (Quiz 1-3)

Write 0.431 as a percent.

• 431%

• 43.1%

• 0.431%

• 43%

Write 2% as a decimal.

• 2

• 0.2

• 0.02

• 2.0

Which values below are equivalent to 1.2

• 120%

• 1.2 x 10⁰

• 12 x 10^-1

• 120 x 10^-2

Write 0.000000008 in scientific notation

• 8.0 x 10^-9

• 8.0 x 10^-10

• 8.0 x 10^-7

• 8 x 10^-11

Write 5% as a reduced fraction.

• ½ %

• 5%

0.055 is what percent?

• .5%

• 5%

• 5 ½ %

• 55%

60% 6 x 10^-2

^{Use the symbols < , >, or = to compare these 2 values}

• <

• >

• =

A pail has 12.5 gallons of water. The pail leaks at a rate of 2.5 gallons per hour, how many hours will it take for the pail to completely empty?

• 10 hours

• 4 hours

• 5 hours

• 3 hours

Write the expression in exponential form. Do not evaluate.

2x2x2x3x3x3x5x5x5x5x5

• 8⋅3³⋅5⁵

• not here

• 8⋅27⋅5⁵

• 2³⋅3³⋅5⁵

Write using exponents:

x • y • x • x • x • y • x

• 5x ⋅ 2y

• x⁵ ⋅ y²

• 5x ⋅ y²

• x⋅x⋅x⋅x⋅x⋅y⋅y