Year 6 Maths: Division by Multiples of Ten

Introduction to Division by Multiples of Ten

Hello Year 6! Today, we are going to learn about division by multiples of ten. This means we will be dividing numbers by 10, 20, 30, and other multiples of ten. Don’t worry; it’s easier than it sounds!

What Are Multiples of Ten?

First, let’s understand what multiples of ten are. A multiple of ten is simply any number that can be made by multiplying ten by a whole number. Here are some examples:

• 10 (10 × 1)
• 20 (10 × 2)
• 30 (10 × 3)
• 40 (10 × 4)
• 50 (10 × 5)

How to Divide by Multiples of Ten

When we divide by multiples of ten, there’s a simple trick you can use!

Key Rule:

1. When you divide a number by 10, 100, or 1000: You can move the decimal point to the left.
   • For example, if you divide 50 by 10, you move the decimal point one place to the left: $$50 \div 10 = 5.0$$
2. When you divide by 20, 30, etc.: You can first divide by 10 and then by the remaining part.
   • For example, if you divide 60 by 20: $$60 \div 20 = 60 \div 10 \div 2 = 3$$

Tips and Tricks

• Use a number line: It can help you visualise how many times the multiple of ten fits into your number.
• Practice with simple numbers: Start with easy numbers to build your confidence.
• Remember zeroes: When dividing by 10, 100, or 1000, you can often just remove a zero from the end of the number.

Practice Questions

Easy Level Questions

1. $$20 \div 10 = ?$$
2. $$30 \div 10 = ?$$
3. $$50 \div 10 = ?$$
4. $$40 \div 10 = ?$$
5. $$60 \div 10 = ?$$
6. $$100 \div 10 = ?$$
7. $$80 \div 10 = ?$$
8. $$90 \div 10 = ?$$
9. $$70 \div 10 = ?$$
10. $$110 \div 10 = ?$$
11. $$20 \div 20 = ?$$
12. $$40 \div 20 = ?$$
13. $$60 \div 20 = ?$$
14. $$80 \div 20 = ?$$
15. $$100 \div 20 = ?$$
16. $$30 \div 30 = ?$$
17. $$60 \div 30 = ?$$
18. $$90 \div 30 = ?$$
19. $$120 \div 30 = ?$$
20. $$150 \div 30 = ?$$

Medium Level Questions

1. $$150 \div 10 = ?$$
2. $$250 \div 10 = ?$$
3. $$120 \div 20 = ?$$
4. $$240 \div 30 = ?$$
5. $$180 \div 10 = ?$$
6. $$300 \div 100 = ?$$
7. $$450 \div 10 = ?$$
8. $$1000 \div 100 = ?$$
9. $$360 \div 90 = ?$$
10. $$560 \div 70 = ?$$
11. $$200 \div 20 = ?$$
12. $$400 \div 100 = ?$$
13. $$330 \div 30 = ?$$
14. $$270 \div 90 = ?$$
15. $$480 \div 10 = ?$$
16. $$900 \div 100 = ?$$
17. $$750 \div 50 = ?$$
18. $$600 \div 30 = ?$$
19. $$800 \div 40 = ?$$
20. $$500 \div 10 = ?$$

Hard Level Questions

1. $$1230 \div 10 = ?$$
2. $$2450 \div 10 = ?$$
3. $$1250 \div 50 = ?$$
4. $$3150 \div 30 = ?$$
5. $$9100 \div 100 = ?$$
6. $$4200 \div 20 = ?$$
7. $$780 \div 30 = ?$$
8. $$660 \div 10 = ?$$
9. $$540 \div 90 = ?$$
10. $$3900 \div 100 = ?$$
11. $$840 \div 20 = ?$$
12. $$960 \div 40 = ?$$
13. $$4800 \div 100 = ?$$
14. $$720 \div 60 = ?$$
15. $$8400 \div 30 = ?$$
16. $$1500 \div 50 = ?$$
17. $$3000 \div 100 = ?$$
18. $$1200 \div 10 = ?$$
19. $$6000 \div 10 = ?$$
20. $$7500 \div 50 = ?$$

Answers and Explanations

Easy Level Answers

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

Medium Level Answers

1. 15
2. 25
3. 6
4. 8
5. 18
6. 3
7. 45
8. 10
9. 4
10. 8
11. 10
12. 4
13. 11
14. 3
15. 48
16. 9
17. 15
18. 20
19. 12
20. 50

Hard Level Answers

1. 123
2. 245
3. 25
4. 105
5. 91
6. 210
7. 26
8. 66
9. 6
10. 39
11. 42
12. 24
13. 48
14. 12
15. 280
16. 30
17. 30
18. 120
19. 600
20. 150

Conclusion

Great job today, Year 6! Remember, dividing by multiples of ten can be simple and fun. Keep practising, and soon it will become second nature! If you have any questions, feel free to ask!