Using the Ruler: Measuring to the Nearest

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0
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Using the Ruler Measuring to the Nearest ½ Inch
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1 2
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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
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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
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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
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If a line comes AFTER the 1/4 inch mark, we round
UP to the next ½ inch.
6
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1
2
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Measure the line to the nearest ½ inch.
1 ½ inches
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9
10
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Measure the line to the nearest ½ inch.
10 inches
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23
24
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Measure the line to the nearest ½ inch.
23 inches
9
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99
100
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Measure the line to the nearest ½ inch.
99 ½ inches
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19
20
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Measure the line to the nearest ½ inch.
20 inches
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43
44
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Measure the line to the nearest ½ inch.
43 ½ inches
12
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3
4
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Measure the line to the nearest ½ inch.
3 ½ inches
13
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26
27
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Measure the line to the nearest ½ inch.
26 ½ inches
14
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17
18
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Measure the line to the nearest ½ inch.
17 ½ inches
15
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86
87
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Measure the line to the nearest ½ inch.
87 inches
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Awesome job! Remember As you measure to the
nearest ½ inch, use the ¼ marks to help you
round. Theyre just like the 5.