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
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
More on Number and number processes
Find out more by working through a topic
- count11 of 25
- count12 of 25
- count13 of 25
- count14 of 25