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**Using the Ruler: Measuring to the Nearest ½ Inch**

1 Using the Ruler: Measuring to the Nearest ½ Inch

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**Each inch is divided into 16 parts. **

2 1 Each inch is divided into 16 parts. In 4th grade, we learn to measure to the nearest half inch.

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1 4 3 4 1 2 1 We use the 1/4 inch marks to help us measure to the nearest ½ inch.

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1 4 3 4 1 2 1 If a line comes BEFORE the 1/4 inch mark, we round DOWN to the ½ inch mark.

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1 4 3 4 1 2 1 If a line comes AFTER the 1/4 inch mark, we round UP to the next ½ inch.

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? 1 2 ? Measure the line to the nearest ½ inch. 1 ½ inches

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? 9 10 ? Measure the line to the nearest ½ inch. 10 inches

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? 23 24 ? Measure the line to the nearest ½ inch. 23 inches

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? 99 100 ? Measure the line to the nearest ½ inch. 99 ½ inches

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? 19 20 ? Measure the line to the nearest ½ inch. 20 inches

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? 43 44 ? Measure the line to the nearest ½ inch. 43 ½ inches

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? 3 4 ? Measure the line to the nearest ½ inch. 3 ½ inches

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? 26 27 ? Measure the line to the nearest ½ inch. 26 ½ inches

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? 17 18 ? Measure the line to the nearest ½ inch. 17 ½ inches

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? 86 87 ? Measure the line to the nearest ½ inch. 87 inches

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**As you measure to the nearest ½ inch, **

Awesome job! Remember: As you measure to the nearest ½ inch, use the ¼ marks to help you round. They’re just like the “5”.

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