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Estimating Differences SOL 2.8 Grade 2 Created by; Kim Smith.

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Presentation on theme: "Estimating Differences SOL 2.8 Grade 2 Created by; Kim Smith."— Presentation transcript:

1 Estimating Differences SOL 2.8 Grade 2 Created by; Kim Smith

2 Estimations are_______. A.Exact answers B.As close as possible to exact C.Guessing D.Adding numbers for answers

3 Why do we estimate? A.To have an exact answer. B.To save time when an exact answer is not needed. C.To use as much tine as we need. D.None of the above

4 When we estimate differences do we subtract whole numbers? A.Yes B.No C.I do not know D.I can’t tell you

5 When estimating we combine numbers in many ways? A.No B.Yes C.Who knows D.I don’t know

6 When estimating do we usually depend on place value? A.Never B.Only when I have to. C.Yes D.I have no idea what you mean

7 If you have 10- ones what could you exchange them for? A.5 ones B.10 ones C.1 ten D.10 tens

8 In estimation if you have 28 ones what could you exchange them for? A.28 tens B.3 tens C.2 tens D.1 ten

9 If you need to estimate the difference of what would you choose? A.1 ten - 2 tens B.2 tens - 2 tens C.2 tens - 1 ten D.1 ten - 1 ten

10 If estimating the answer = you would use what? A.8 tens - 6 tens B.8 tens - 6 ones C.9 tens - 6 tens D.9 tens -7 tens


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