Unit 2 Review Test Powers of 10 & Decimals

How is seventy-two and eighty-five thousandths written as a number?

• 72.850
• 72.805
• 72.085
• 70.285

What is 7,802 written in expanded notation?

• (7 x 1000) + (8 x 100) + (2 x 1)
• (7 + 1000) x (8 + 100) x (2 + 1)
• 7 x 1000 + 8 x 100 + 0 x 10 + 2 x 1
• 7000  + 800 + 2

Which number represents six and eighty-four thousandths in standard form?  

• (6 x 1) + (8 x 1/100) + (4 x 1/1000)
• 6.84
• (6 x 1) + (8 x 1/10) + (4 x 1/100)
• 6.084

32 x 10⁵

• 32,000
• 3,200,000
• 320,000
• 320

Solve. 
331.2 divided by 10³

• 33.12
• .3312
• 3.312
• .03312

What is 5.5694 rounded to the nearest tenth?

• 5.6
• 6
• 5.57
• 5.69

Which of the following is 4.52 when rounded to the nearest hundredth?

• 4.453
• 4.449
• 4.512
• 4.523

Which number is five and twenty-six thousandths rounded to the nearest tenth?

• 5.0
• 5.1
• 5.02
• 5.03

• 4.9
• 5.6
• 5.8
• 6.0

• 1.6
• 2.1
• 0.9
• 1.9