Lesson: Estimating Products: Decimals by Whole Numbers Mathematics • 5th Grade
In this lesson, we will learn how to use rounding and compatible numbers to estimate the product of a decimal and a whole number.
Consider the product .
Estimate the product by rounding each number to its greatest place value.
Calculate the product.
We can estimate products by rounding each number to its greatest place value as in the example.
Use this method to estimate the following products.