Multiplying by 10 and by 100
Before continuing with multiplication it might be wise to review place value.
Quick Place Value Review
Because we use a Base-10 number system, multiplying by 10 or 100 (or any multiple of 10) is fairly easy.
As the picture below shows, each place has a value 10 times that of the place immediately to the right
If necessary, review place value before proceeding with the multiplication methods below.
Multiplying by 10
| Multiply by 10 by moving the numbers one place to the left and adding one zero. | |||||||||||||||||||||||||||
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Multiplying by 100
| Multiply by 100 by moving the numbers two places to the left and adding two zeros. | |||||||||||||||||||||||||||
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Quick Way: count the zeros and put them to right of the number being
multiplied.
e.g. 34 x 100 = 3400
Try this multiplication worksheet generator. You can select to multiply by multiples of 10 or multiples of 100 and get limitless questions to print out and practice with.
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