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# Guess and Check, Work Backward

## Solve story problems using estimation and evaluation

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.

## Guess and Check, Work Backward

Solve word problems using the guess, check, and revise strategy.
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## Guess and Check, Work Backward

by Barbara Zingg //basic
Learn how to solve problems using guess and check and by working backward.
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• Study Guide

## Guess and Check, Work Backwards

by Kevin Cui //basic
Learn to solve problems by guessing and checking.
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## Problem Solving with Guess and Check

by Drishan Sarkar //basic
How to guess and check to solve problems
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• Flashcards

## Guess and Check, Work Backward

by Tiffany Kwok //basic