Multiplying by 10 When we multiply by 10 we are making the number ten times bigger. L.O. - Multiply...
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Transcript of Multiplying by 10 When we multiply by 10 we are making the number ten times bigger. L.O. - Multiply...
Multiplying by 10
When we multiply by 10 we are making the number ten
times bigger.
L.O. - Multiply an integer up to 1000 by 10; understand the effect.
Th h t u
1 1 1 1
x10x10x10
In the decimal system, each column has numbers 10 x bigger than the next one
110100
1000
Th h t u
x10
Let’s try it with another number!
33 0
x10
3 0 0
x10
3 0 0 0
Th h t u
66 0
x10
If we multiply 6 by ten it will move into the next column
We must put a 0 in the empty units column to hold the place – 6 x 10 = 60
Let’s try with some other numbers
20200
330
23 x 10 = 230
Th h t u
2 3
Don’t forget to add the zero in the empty column!
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?
Th h t u
66 0 0
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?
Now you are going to try some yourselves!