This task is about estimating in addition problems.
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Estimation is an approximate answer you can easily work out in your head, NOT the calculation of an exact amount.
The following questions are about estimating, NOT calculating.
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| a) |
Here is an equation: 57 + 24
i) The sum of the equation is about: (Circle one) (A) 30
(B) 60
(C) 80
(D) 100
(E) None of these. It is about _______
ii) In the box below, show how you estimated this:
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| b) |
Here is another equation: 259 + 348 i) The sum is about _______ (Do NOT give an exact answer) ii) In the box below, show how you estimated this:
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| c) |
Here is a third equation: 124 + 438 + 267 i) The sum is about _______ (Do NOT give an exact answer) ii) In the box below, show how you estimated this:
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