Watch: How to multiply and divide 0, 1,10 and 100
Multiplying by 1, 10, or 100
When you multiply by 1 the answer stays the same.
21 脳 1 = 21
When you multiply by 10, move all the digits one place to the left, putting a zero in the empty space.
21 脳 10 = 210
When you multiply by 100, move all the digits two places to the left, putting a zero in the empty spaces.
21 脳 100 = 2100
Multiplying by 0
Any number multiplied by 0 is 0
5 脳 0 = 0
100 脳 0 = 0
9456 脳 0 = 0
What is 1,000,000 脳 0?
Dividing by 1, 10 or 100
When you divide by 1 the answer stays the same.
21 梅 1 = 21
When you divide by 10, move all the digits one place to the right.
210 梅 10 = 21
When you divide by 100, move all the digits two places to the right.
2100 梅 100 = 21
Activities
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Quiz
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More on Multiplying and dividing
Find out more by working through a topic
- count3 of 36
- count4 of 36
- count5 of 36
- count6 of 36
