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Decimal rounding and estimation
Decimal rounding and estimation
Example 1
Round 6.612 to one decimal place.
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Answer: 6.6
- Inspect the hundredths digit, 1. Keep the tenths digit.
Example 2
Round 6.523 to two decimal places.
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Answer: 6.52
- Inspect the thousandths digit, 3. Keep the hundredths digit.
Example 3
Estimate 4.4×6.2 by rounding each factor to the nearest whole number first.
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Answer: 24
- The rounded factors are 4 and 6; their product is 24.
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