Download presentation

Presentation is loading. Please wait.

Published byRose Pole Modified over 3 years ago

1
How do you multiply 512 x 46? Those are really big numbers!

2
In this lesson you will learn how to multiply multi-digit numbers by using the standard algorithm.

3
Let’s Review Product – The result when two numbers are multiplied. For Example: 4 x 5 = 20 product

4
Multiplication is repeated addition. 32 + 32 + 32 + 32 + 32 32 x 5 Multiplication is faster!

5
Multiplying by powers of 10. 36 x 10 = 360 36 x 100 = 3,600 36 x 1,000 = 36,000

6
A Common Mistake Multiplying each digit as if it represents a number of “ones.” It is important to remember the place value of each digit. 36 x 5 = 30 x 5 + 6 x 5

7
Let’s Review Core Lesson Multiply 512 x 46 512 x 46 First, we need to multiply 512 by 6. Then we need to multiply 512 by 40.

8
Let’s Review Core Lesson 512 x 46 2 1 730 0 Adding a zero shows that we are multiplying by 10’s. 8 4 20 + 23,552 Next, we add the partial products.

9
Let’s Review Core Lesson 405 x 57 5 3 328 0 Adding a zero shows that we are multiplying by 10’s. 5 2 20 + 23,085 Next, we add the partial products. 2

10
In this lesson you have learned how to multiply multi-digit numbers by using the standard algorithm.

11
Let’s Review Guided Practice Multiply 422 x 18.

12
Let’s Review Extension Activities Write a real world problem that could be solved by using 32 x 12.

13
Let’s Review Extension Activities Every student received 24 pencils. If there are 20 students in my class, how many pencils did we have in all?

14
Let’s Review Extension Activities Write a multiplication equation that has a product of 3,600.

15
Let’s Review Quick Quiz Multiply 290 x 73.

16
Let’s Review Quick Quiz Multiply 64 x 48.

Similar presentations

OK

Solving Inequalities with variables on both sides of the Sign

Solving Inequalities with variables on both sides of the Sign

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on home automation using zigbee Ppt on 2 stroke engine Ppt on switching devices Ppt on windows 7 operating system Ppt on word association test saturday Ppt on plant cell structure Ppt on eisenmenger syndrome and pregnancy Ppt on network monitoring system Ppt on computer languages salary Ppt on conservation of water resources