# Multiplication by Multiples of 10

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Our Multiplication by Multiples of 10 lesson plan teaches students several methods for multiplying whole numbers by multiples of 10. Students complete practice problems in order to solidify their understanding of the lesson material.

Included with this lesson are some adjustments or additions that you can make if you’d like, found in the “Options for Lesson” section of the Classroom Procedure page. One of the optional additions to this lesson is to have students play a memory game where they keep their card if they can correctly answer the problem. The person with the most cards at the end of the game wins!

# What our Multiplication by Multiples of 10 lesson plan includes

Lesson Objectives and Overview: Multiplication by Multiples of 10 lesson plan teaches students strategies for multiplying whole numbers by multiples of 10. This lesson is for students in 3rd grade and 4th grade.

### Classroom Procedure

Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the orange box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand. The supplies you will need for this lesson include small markers for the bingo game and the handouts. To prepare for this lesson ahead of time, you can copy the handouts and gather the materials.

#### Options for Lesson

Included with this lesson is an “Options for Lesson” section that lists a number of suggestions for activities to add to the lesson or substitutions for the ones already in the lesson. The first suggested adjustment is to have students use a dice or spinner to roll for multiples of 10 to practice with. You can also have students play a memory game where they keep their card if they can correctly answer the problem. The person with the most cards at the end of the game wins! Finally, you can have students begin the lesson by reviewing their multiplication skills.

### Teacher Notes

The teacher notes page includes lines that you can use to add your own notes as you’re preparing for this lesson.

## MULTIPLICATION BY MULTIPLES OF 10 LESSON PLAN CONTENT PAGES

### Multiplication of Multiples of 10

The Multiplication by Multiples of 10 lesson plan includes two pages of content. The lesson begins with an example of how you can multiply a whole number by ten. The example problem is 3 x 70. To solve this problem, you could use repeated addition (70 + 70 + 70). This is easy, but we have an even easier way to solve it.

First, you think of 70 as 10 x 7, leaving you with 3 x 7 x 10. We haven’t changed the value of the numbers, because 70 is equal to 10 x 7. The commutative property of multiplication means that we can multiply these numbers in any order that we want, and the answer will stay the same. Therefore, we’ll first multiply 3 x 7, which equals 21. We then have 21 x 10. We just need to add a 0 to 21 because when you multiply a number by 10, you increase the place value by one space. The final answer is 210! This method will help you solve problems faster (and even in your head).

The lesson includes two additional examples: 2 x 80 and 4 x 50. For 2 x 80, we can break it down in 2 x 8 x 10, which becomes 16 x 10, which means the answer is 160. For 4 x 50, we break it down into 4 x 5 x 10, which becomes 20 x 10, which equals 200. That’s all it takes!

## MULTIPLICATION BY MULTIPLES OF 10 LESSON PLAN WORKSHEETS

The Multiplication by Multiples of 10 lesson plan includes three worksheets: an activity worksheet, a practice worksheet, and a homework assignment. You can refer to the guide on the classroom procedure page to determine when to hand out each worksheet.

### BINGO ACTIVITY WORKSHEET

Students will create their own bingo card using the answers to given multiplication problems. The teacher will call out the answers and the student who gets bingo first wins!

### FIND THE PRODUCT PRACTICE WORKSHEET

The practice worksheet asks students to find the product of each multiplication problem.

### MULTIPLICATION BY MULTIPLES OF 10 HOMEWORK ASSIGNMENT

For the homework assignment, students will find the product of each multiplication problem, showing their work as needed.

This lesson plan includes answer keys for the practice worksheet and the homework assignment. If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits these pages. Otherwise, you can simply print out the applicable pages and keep these as reference for yourself when grading assignments.

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LP
07/22/2021 US

### Clear, organized and aligned!

Awesome resources!!! Thank You for making a teacher’s life easier!

ET
02/04/2019
US

### multiplies of 10

enjoyed the worksheet and activities!