Estimating Sums and Differences of Decimals

Students learn to estimate the sum or difference of two decimals by first rounding each decimal to the nearest whole number, then adding or subtracting. For example, to estimate the sum of 4.94 and 2.185, round 4.94 up to 5, and round 2.185 down to 2, to get 5 + 2, which equals 7.

FREE PRACTICE

COMPLETE LESSON

Estimating Sums and Differences of Decimals is one of thousands of math lessons at MathHelp.com.

JOIN NOW TO ACCESS OUR COMPLETE LESSONS

Video Examples
Guided Practice with Audio
Self Tests & Grade Reports
Worksheets, Notes, & More