Deciding if a Solution is Reasonable Worksheet Download
Free 6th Grade math worksheets on Deciding if a Solution is Reasonable. Each worksheet has 8 problems with an answer key and are ideal for teachers and homeschooling. You can download the PDF, create a set of flash cards or set it up for online learning.
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About this worksheet
Each worksheet has 8 problems judging whether a proposed answer is reasonable and giving the correct value.
Assessing whether a solution is reasonable is the last clause of this standard and had no worksheet anywhere on the site. The judgement here is about size rather than arithmetic, and every problem has a rule a student can state before solving: if a number plus something equals a total, it must be less than the total; if a fraction of a number is a given amount, the number must be larger than that amount. The wrong answers are always the named mistake - added where the equation calls for subtracting, multiplied where it calls for dividing - so they land on the wrong side and no exact calculation is needed to see it. The correct value is asked for as well, so the sheet is not a page of coin flips. Sheets can be customized, turned into flash cards, or assigned for online learning.
Student objectives
- Say whether an answer should be larger or smaller than the number given.
- Spot an answer that is on the wrong side of that number.
- Find the correct value and confirm the judgement.
Everyday practice
- Guess whether the answer will be bigger or smaller before working it out.
- Say why a fraction of a number is smaller than the number.
- Check an answer against the size of the question.