Rounding Numbers

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RoundingNumbers
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Whats the Golden Rule?
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If the digit is five or more, around up.
For example 36 would become 40.
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If the digit is less than 5, you round down.
For example 23 would become 20.
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Here are more examples.
56 becomes 60 98 becomes 100 14 becomes 10
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What about bigger numbers?
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Round 154 to the nearest tens.
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First, underline the digit in the tens place.
154
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Next, look at the digit to the right.
154
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If it is less than 5, the tens digit stays the
same and the ones digit becomes a 0.
154 becomes 150
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What if the number was 178?
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Follow the same rule.
178
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The 7 in the tens place becomes an 8. The 8 in
the ones place becomes a 0.
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So 178 becomes 180.
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Lets try a few.
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Round to the nearest tens.
17
138
18
140
Answer
19
287
20
290
Answer
21
955
22
960
Answer
23
552
24
550
Answer
25
236
26
240
Answer
27
111
28
110
Answer
29
798
30
800
Answer
31
423
32
420
Answer
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Round to the nearest hundreds.
34
552
35
600
Answer
36
127
37
100
Answer
38
645
39
600
Answer
40
777
41
800
Answer
42
913
43
900
Answer
44
848
45
800
Answer
46
362
47
400
Answer