Multiplying by 10

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# Multiplying by 10 - PowerPoint PPT Presentation

L.O. - Multiply an integer up to 1000 by 10; understand the effect. Multiplying by 10. When we multiply by 10 we are making the number ten times bigger. x10. x10. x10. In the decimal system, each column has numbers 10 x bigger than the next one. 1000. 100. 10. 1. x10. x10. x10.

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## PowerPoint Slideshow about 'Multiplying by 10' - tailynn

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Presentation Transcript

Multiplying by 10

When we multiply by 10 we are making the number ten times bigger.

x10

x10

x10

In the decimal system, each column has numbers 10 x bigger than the next one

1000

100

10

1

x10

x10

x10

Let’s try it with another number!

3 0 0 0

3

3 0 0

3 0

If we multiply 6 by ten it will move into the next column

x10

We must put a 0 in the empty units column to hold the place – 6 x 10 = 60

200

20

30

3

Let’s try with some other numbers

Don’t forget to add the zero in the empty column!

23 x 10 = 230

Let’s try these together!

48 x 10 =

93 x 10 =

134 x 10 =

256 x 10 =

889 x 10 =

480

930

1340

2560

8890

Were you right?

If we multiply 6 by a hundred it will move up two columns

We must put a 0 in the empty columns to hold the place – 6 x 100 = 600

Let’s try these together!

8 x 100 =

15 x 100 =

28 x 100=

134 x 100 =

267 x 100 =

800

1500

2800

13400

26700

Were you right?