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# Section 3.4

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### Section 3.4

1. 1. Learning Target:Students will learn how to round decimals to a given place value.<br />
2. 2. Using a number line to round: You round a decimal by deciding which number it is closer to.The same idea applies to the rounding rules.<br />
3. 3. Rounding Rule:To round a decimal to a given place value, look at the digit in the place to the right.- If the digit is 4 or less, round down.- If the digit is 5 or greater, round up.<br />
4. 4. Use a number line / rounding rule to round the decimal as specified. 1. 1.3 (nearest one)2. 3.86 (nearest tenth)<br />
5. 5. Answers:1. 12. 3.9<br />
6. 6. Use a number line / rounding rule to round the decimal as specified. 1. 7.096 (nearest hundredth)2. 3.9876 (nearest thousandth)<br />
7. 7. Answers:1. 7.102. 3.988<br />
8. 8. When rounding small numbers we round to the leading digit to make the decimal easier to understand. (1st nonzero digit as you read left to right)<br />
9. 9. Round the decimal to the leading digit.1. 0.0582. 0.0091<br />
10. 10. Answers:1. 0.062. 0.009<br />
11. 11. Round the decimal to the leading digit.1. 0.09522. 0.006192<br />
12. 12. Answers:1. 0.1 or 0.102. 0.006<br />
13. 13. Can you round decimals to a given place value? <br />
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