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Lesson: Estimating Decimals Sums Mathematics • 5th Grade

In this lesson, we will learn how to estimate the sum of two decimal numbers by rounding to the nearest whole number or using compatible numbers.

Lesson Plan

Students will be able to

estimate the sum of two decimal numbers by rounding to the nearest whole number, ten, or hundred,
estimate the sum of two decimal numbers by rounding to compatible numbers.

Q1:

Calculate , rounding your answer to the nearest whole number.

Q2:

to the nearest thousandth.

Q3:

Complete to the nearest hundredth.

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