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Whiteboard
ClassFlow

Class Flow: Estimating Sums and Differences

For Teachers 1st - 3rd Standards
[Free Registration/Login Required] This flipchart is designed to teach third grade students the steps in estimating sums and differences. It also reviews rounding numbers to the nearest ten and hundred.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation of Whole Number

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round whole numbers in order to estimate sums and differences.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Estimation of Whole Number

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Round whole numbers in order to estimate sums and differences.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Subtraction

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Subtracting decimals with and without rounding
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Interactive
Mangahigh

Mangahigh: Number: Estimation

For Students 5th - 7th Standards
Estimate the sum and difference by rounding whole numbers and decimals.

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