Year 5 Maths: Dividing by 10, 100 and 1000

Understanding Division by 10, 100, and 1000

Hello, Year 5! Today, we are going to learn about dividing numbers by 10, 100, and 1000. This is an important skill that will help you work with numbers more easily.

What Happens When We Divide?

When we divide a number, we are splitting it into equal parts. Dividing by 10, 100, or 1000 makes our numbers smaller. Let’s see how this works!

Dividing by 10

When you divide a number by 10, you move the digits one place to the right.

Examples:

• $$20 \div 10 = 2$$
• $$150 \div 10 = 15$$
• $$500 \div 10 = 50$$

Key Rule:

• Move the decimal point one place to the left. If there is no decimal point, you can imagine it at the end of the number.

Dividing by 100

When you divide a number by 100, you move the digits two places to the right.

Examples:

• $$300 \div 100 = 3$$
• $$8400 \div 100 = 84$$
• $$5200 \div 100 = 52$$

Key Rule:

• Move the decimal point two places to the left.

Dividing by 1000

When you divide a number by 1000, you move the digits three places to the right.

Examples:

• $$4000 \div 1000 = 4$$
• $$75000 \div 1000 = 75$$
• $$120000 \div 1000 = 120$$

Key Rule:

• Move the decimal point three places to the left.

Tips and Tricks

1. Use Place Value: Remember that dividing by 10, 100, or 1000 affects the place value of each digit.
2. Decimal Points: If you need to move the decimal point past the beginning of the number, add zeros to hold the place.
3. Practice: The more you practice, the easier it will become!

Questions

Easy Level Questions

1. What is $$30 \div 10$$?
2. What is $$50 \div 10$$?
3. What is $$100 \div 10$$?
4. What is $$90 \div 10$$?
5. What is $$200 \div 10$$?
6. What is $$600 \div 100$$?
7. What is $$800 \div 100$$?
8. What is $$300 \div 100$$?
9. What is $$500 \div 100$$?
10. What is $$900 \div 100$$?
11. What is $$1500 \div 1000$$?
12. What is $$3000 \div 1000$$?
13. What is $$6000 \div 1000$$?
14. What is $$12000 \div 1000$$?
15. What is $$4500 \div 1000$$?
16. What is $$20 \div 10$$?
17. What is $$70 \div 10$$?
18. What is $$40 \div 10$$?
19. What is $$10 \div 10$$?
20. What is $$15 \div 10$$?

Medium Level Questions

1. What is $$250 \div 10$$?
2. What is $$450 \div 10$$?
3. What is $$360 \div 10$$?
4. What is $$1200 \div 100$$?
5. What is $$4500 \div 100$$?
6. What is $$7500 \div 100$$?
7. What is $$9800 \div 100$$?
8. What is $$3000 \div 1000$$?
9. What is $$23000 \div 1000$$?
10. What is $$67000 \div 1000$$?
11. What is $$5400 \div 100$$?
12. What is $$1600 \div 100$$?
13. What is $$8400 \div 100$$?
14. What is $$9000 \div 1000$$?
15. What is $$3200 \div 100$$?
16. What is $$45000 \div 1000$$?
17. What is $$25000 \div 1000$$?
18. What is $$1300 \div 100$$?
19. What is $$15000 \div 1000$$?
20. What is $$2900 \div 100$$?

Hard Level Questions

1. What is $$560 \div 10$$?
2. What is $$8800 \div 100$$?
3. What is $$7200 \div 100$$?
4. What is $$65000 \div 1000$$?
5. What is $$87000 \div 1000$$?
6. What is $$5400 \div 1000$$?
7. What is $$12300 \div 100$$?
8. What is $$13000 \div 1000$$?
9. What is $$9999 \div 10$$?
10. What is $$45000 \div 100$$?
11. What is $$7800 \div 100$$?
12. What is $$9900 \div 100$$?
13. What is $$52000 \div 1000$$?
14. What is $$43000 \div 1000$$?
15. What is $$88000 \div 1000$$?
16. What is $$6200 \div 100$$?
17. What is $$7800 \div 100$$?
18. What is $$19500 \div 1000$$?
19. What is $$4500 \div 100$$?
20. What is $$8888 \div 10$$?

Answers

Easy Level Answers

1. 3
2. 5
3. 10
4. 9
5. 20
6. 6
7. 8
8. 3
9. 5
10. 9
11. 1.5
12. 3
13. 6
14. 12
15. 4.5
16. 2
17. 7
18. 4
19. 1
20. 1.5

Medium Level Answers

1. 25
2. 45
3. 36
4. 12
5. 45
6. 75
7. 98
8. 3
9. 23
10. 67
11. 54
12. 16
13. 84
14. 9
15. 32
16. 45
17. 25
18. 13
19. 15
20. 29

Hard Level Answers

1. 56
2. 88
3. 72
4. 65
5. 87
6. 5.4
7. 123
8. 13
9. 999.9
10. 450
11. 78
12. 99
13. 52
14. 43
15. 88
16. 62
17. 78
18. 19.5
19. 45
20. 888.8

Now you have a good grasp of dividing by 10, 100, and 1000! Keep practicing, and you’ll become a division pro!