# Number Sense: Estimating

*Estimating*

There are times when an exact answer is needed and times when it is not. Approximation further develops an understanding of what is reasonable within a given context.

“Mental math enables students to determine answers and propose strategies without paper and pencil. It improves computational fluency and problem solving by developing efficiency, accuracy, and flexibility.”^{1}

**Elementary Examples**

*Middle Years Examples*

*High School Examples*

^{1}Ministry of Education, S. (2020). Retrieved 20 June 2020, from https://curriculum.gov.sk.ca/bbcswebdav/library/curricula/English/Mathematics/Mathematics_7_2007.pdf

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