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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

Develop and use the strategies of guess and check and work backward.
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## Guess and Check, Work Backward

Explore how to solve word problems using the guess, check, and revise strategy.
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## Guess and Check, Work Backward

Explore how to solve word problems using the guess, check, and revise strategy.
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• Video

## Problem Solving Strategies- Guess and Check and Work Backwards: A Sample Application

This video demonstrates a sample use of the problem solving strategies: "Guess and Check" and "Work Backwards."
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## Problem Solving Strategies- Guess and Check and Work Backwards: An Explanation

This video demonstrates a sample use of the problem solving strategies: "Guess and Check" and "Work Backwards."
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## Guess and Check, Work Backward Quiz

Quiz for Guess and Check; Working Backward.
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• Critical Thinking

## Guess and Check, Work Backward Discussion Questions

A list of student-submitted discussion questions for Guess and Check, Work Backward.
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• Real World Application

## Car Loan

Students apply their understanding of the guess and check problem solving method and solving multi-step equations by looking at options for a car loan.
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