Download presentation

Presentation is loading. Please wait.

1
**Multiplying and Dividing Decimals by Whole Numbers**

Lesson 3-6: Multiplying and Dividing Decimals by Whole Numbers

2
**Multiplying by whole numbers**

Multiply decimals as you would whole numbers. Then place the decimal point in the product. The number of decimal places in the product is equal to the sum of the number of decimal places in the factors.

3
Example: 5.63 x 7 4 2 5.63 two x 7 39 . 4 1 two

4
Multiplying by 10,100, 1000 ect: When you multiply by 10, 100, or 1,000, you can move the decimal point to the right. The number of decimal places you move is the same as the number of zeroes you are multiplying by. When you divide by 10, 100, or 1,000, you can move the decimal point to the left. Move the decimal point once for each zero you are dividing by.

5
1.492 x 100 Move the decimal to the right: two spaces. 149.2

6
2, ÷ 1,000 Move the decimal to the left: three spaces.

7
4.2 ÷ 100 Move the decimal point to the left: two spaces. Add a zero for the second space. .042

8
15.36 x 1,000 Move the decimal point to the right: three spaces. Add a zero for the third space. 15,360

9
**Practice P165 # 1-9 odd (check answers in back of text)**

The above image is a royalty free picture provided by

Similar presentations

OK

Multiplication and Division. Steps 1) Multiply 2) Count place values 3) Move the decimal left that number of spaces.

Multiplication and Division. Steps 1) Multiply 2) Count place values 3) Move the decimal left that number of spaces.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on unit step function Ppt on indian premier league Ppt on idiopathic thrombocytopenia purpura splenectomy Convert word doc to ppt online student Ppt on uses of concave and convex mirror Ppt on symbols of french revolution Ppt on vice president of india Ppt on central administrative tribunal Download seminar ppt on graphical password authentication Ppt on eid festival images