Download presentation

Presentation is loading. Please wait.

1
**Place Value and Multiplication**

millions thousands 100 10 1 Before the decimal point . After the decimal point 1000 100 10 1 1/10 1/100 1/1000 1/10000

2
**Place Value & X by 10 3 2 0 7 8, 9 5 0 millions thousands 100 10 1 3 2**

7, 8 9 5 7 8,

3
**Place Value & X by 10 2 3 4, 5 6 0 8 9 0, 1 2 3, 4 5 0 millions**

thousands 100 10 1 2 3, 4 5 6 8 9, 2, 3 , , ,

4
**After the decimal point**

Place Value & X by 10 thousands After the decimal point 100 10 1 . 1/10 1/100 8 2 3 8 . 2

5
**When you multiply by ten**

The answer gets bigger The decimal point moves to the right one place or the numbers move one place to the left 4 6 . 5 . 9 2 3 .

6
Multiply by 10 - The answer gets bigger 3.52 x 10 = 35.2 4.209 x 10 = 42.09 0.6 0.06 x 10 = x 10 = 0.086

7
**Place Value & X by 100 3, 2 0 0 7 8 9, 5 0 0 millions thousands 100 10**

7, 8 9 5 3, ,

8
**Place Value & X by 100 3 4 5, 6 0 0 9 0 1, 2 3 4, 5 0 0 millions**

thousands 100 10 1 3, 4 5 6 9, 2, 3 , , ,

9
**When you multiply by a hundred**

The answer gets bigger The decimal point moves to the right two places or the numbers move two places to the left 2 . 8 4 6 . 5 9 . 3 2 2 8 8

10
Multiply by 100 6 x 100 12 x 100 25 x 100 64 x 100 = 600 13.5 x 100 = 1350 = 1200 4.23 x 100 = 423 = 2500 0.16 x 100 = 16 = 6400 0.063 x 100 = 6.3

11
**When you multiply by a thousand**

The answer gets bigger The decimal point moves to the right three places or the numbers move three places to the left 2 . 3 5 . 4 6 5 9 . 3 2 3 2 5 2 3 3 5 5

12
Multiply by 1000 6 x 1000 12 x 1000 25 x 1000 64 x 1000 = 6,000 13.5 x 1000 = 13,500 = 12,000 4.23 x 1000 = 4,230 = 25,000 0.16 x 1000 = 160 = 64,000 0.063 x 1000 = 63

13
**When multiplying by 10,100,1000- I know that the number gets bigger**

The place value of each digit is changing or the decimal point is moving 101 =10 102 =10 x 10 =100 103 =10 x 10 x 10 =1000 104 = 10 x 10 x 10 x 10=10000 Can I do this multiply by just looking at it?

Similar presentations

© 2022 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google