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# Estimation of Whole Number Addition and Subtraction

## Estimate sums and differences with rounding.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Estimation of Whole Number Addition and Subtraction

by Liz Grunow //basic

Round whole numbers in order to estimate sums and differences.

0

## Estimating a Sum or Difference

by Drishan Sarkar //basic

How to estimate sums and differences of whole numbers using rounding.

0

## Multiplication and Division Estimation

by Drishan Sarkar //basic

How to solve multiplacion and division problems using estimation

1
• Flashcards

## Estimation of Whole Number Addition and Subtraction

by Tiffany Kwok //basic