This task is about estimating the addition of numbers.
An estimate is sometimes called a "good guess" that is easy to do in your head. The following questions are about estimating NOT working out the exact answer.
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a) |
i) Estimate the sum of 18 + 23
ii) Show how you estimated the sum. |
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I estimated the sum was about __________
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b)
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i) Estimate the sum of 16 + 27 + 41
ii) Show how you estimated the sum. |
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I estimated the sum was about __________
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c)
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i) Estimate the sum of 127 + 179
ii) Show how you estimated the sum. |
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I estimated the sum was about __________
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