# Lesson Plan: Multiplying and Dividing Decimals by Powers of Ten Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to investigate the effects of multiplying and dividing decimals by powers of 10.

#### Objectives

Students will be able to

• understand changing place value of digits when multiplying or dividing by 10, 100, and 1,000,
• understand how to multiply whole numbers and decimals by 10, 100, and 1,000,
• understand how to divide whole numbers and decimals by 10, 100, and 1,000,
• complete missing values when multiplying or dividing by 10, 100, and 1,000,
• apply multiplying or dividing by powers of 10 to conversion of metric measures and word problems.

#### Prerequisites

Students should already be familiar with

• place value of decimals with up to four decimal places.

#### Exclusions

Students will not cover

• multiplication or division of values by a power of 10 larger than 1,000,
• decimal calculations other than multiplication or division by 10, 100, and 1,000,
• powers of 10 written in standard form,
• multiplication or division of negative numbers and/or negative powers of 10.