Understanding and Rounding Decimals

Rounding Decimals

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What's a Whole Number?

Numbers to the LEFT of the decimals are whole numbers.

Round 4.2 to the nearest whole number

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Round 2.6 to the nearest whole number

Multiple Choice

What is 7.3 rounded to the nearest whole number?

• 6

• 7

• 8

Multiple Choice

What is 16.7 rounded to the nearest whole number?

• 16

• 17

Multiple Choice

What is 126.5 rounded to the nearest whole number?

• 125

• 126

• 127

Round 2.72 to the nearest tenth.

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Multiple Choice

What is 5.23 rounded to the nearest tenth?

• 5.1

• 5.2

• 5.3

Multiple Choice

What is 17.86 rounded to the nearest tenth?

• 17.7

• 17.8

• 17.9

• 18

Multiple Choice

What is 126.62 rounded to the nearest tenth?

• 126.5

• 126.6

• 126.7

• 127

Multiple Choice

When multiplying by powers of 10... the decimal point moves one place to the ___ for each zero.

• right

• left

Multiple Choice

26.37x10=

• 2.637

• 26.37

• 263.7

Multiple Choice

4.183x100=

• 41.83

• 418.3

• 4183

Multiple Choice

Sandra can run 6.2 miles in one hour. How many miles could she run in 10 hours?

• 16.2 miles

• 62 miles

• 620 miles

Multiple Choice

7.8x11=

• 8.58

• 18.8

• 85.8

• 858