# Estimating sums

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##### Intros

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##### Examples

###### Lessons

**Front-End Estimation of Sums**

Estimate the sum using front-end estimation. Then, find the exact sum to check your answer.**Estimating Sums by Rounding**

Estimate the sum using estimation by rounding. Then, find the exact sum to check your answer**Estimating Sums Word Problem - 1**

A pirate finds a map that shows the route to some treasure. The instructions tell the pirate to go: 25.42 km North, then 61.3 km West, and finally 79.018 km North-East.- About how many kilometers is the entire route to the treasure?

**Estimating Sums Multiple Choice**

Estimate the sum using multiple estimation methods. Then choose the best answer:12$\frac{5}{8}$ + 11$\frac{4}{5}$ =

A. Less than 23

B. Between 23 and 24

C. Greater than 24**Estimating Sums Word Problem - 2**

This week, Elizabeth ran 3$\frac{1}{5}$ miles on the Monday, 7$\frac{3}{4}$ miles on Wednesday, and 5$\frac{3}{8}$ miles on Friday. About how many miles did she run in total for the week?