operations · Year 6 · AC9M6N06
Multiply and divide by 10, 100 and 1000
Multiplying by 10 makes every digit ten times bigger, so each digit moves one place to the left. Multiplying by 100 moves digits two places, and by 1000 three places. Dividing moves the digits to the right. The decimal point stays still; use zeros to fill empty places. Adding a zero on the end only works for whole numbers.
Sample questions
2820 ÷ 10 = ?
- Dividing by 10 makes the number 10 times smaller, so every digit moves 1 place to the right.
- 2820 ÷ 10 = 282.
Answer: 282
8800 ÷ 10 = ?
- Dividing by 10 makes the number 10 times smaller, so every digit moves 1 place to the right.
- 8800 ÷ 10 = 880.
Answer: 880
6000 ÷ 100 = ?
- Dividing by 100 makes the number 100 times smaller, so every digit moves 2 places to the right.
- 6000 ÷ 100 = 60.
Answer: 60