Year 4 Maths: Subtraction of Money

Introduction to Subtraction of Money

Hello, Year 4! Today, we are going to learn about subtraction, but we will be using money! Subtraction is when we take away one number from another. When it comes to money, it helps us find out how much we have left after we spend some.

Understanding Money

Before we dive into subtraction, let’s quickly review what money looks like in the UK:

• Pence: 1p, 2p, 5p, 10p, 20p, 50p
• Pound: £1, £2, £5, £10, £20, £50

When we do subtraction with money, we often use pounds (£) and pence (p).

Key Rules for Subtracting Money

1. Align the decimal point: When you write down the amounts, make sure to line up the pounds and pence.
2. Convert pence to pounds if needed: Remember, 100p equals £1. If you have more pence than you are subtracting, you may need to convert some pence into pounds.
3. Take your time: Subtraction can sometimes be tricky, so take your time to check your work.

Tips and Tricks

• Use a number line: If you’re not sure, draw a number line to help you see how much you have taken away.
• Practice counting: Practice counting in pence and pounds to get used to how they work together.
• Break it down: If a problem seems big, break it down into smaller steps.

Example of Subtraction with Money

Let’s say you have £5.00 and you want to buy a toy that costs £2.50.

1. Write down your amounts:
   • £5.00
   • £2.50
2. Align the amounts: £5.00 - £2.50
3. Subtract the pence first:
   • 0p – 50p: You cannot take 50p from 0p, so you will need to take 1 pound from the £5, making it £4.00. Now you have 100p – 50p = 50p.
4. Now subtract the pounds:
   • £4.00 – £2.00 = £2.00
5. Add the pence back:
   • £2.00 + 0.50 = £2.50

So, £5.00 – £2.50 = £2.50. You have £2.50 left!

Practice Questions

Easy Level Questions (20 Questions)

1. £3.00 – £1.00 = ?
2. £4.50 – £2.00 = ?
3. £5.00 – £3.50 = ?
4. £2.00 – £0.50 = ?
5. £10.00 – £5.00 = ?
6. £6.00 – £2.00 = ?
7. £7.50 – £4.50 = ?
8. £8.00 – £3.00 = ?
9. £2.50 – £2.00 = ?
10. £1.00 – £0.50 = ?
11. £4.00 – £1.50 = ?
12. £9.00 – £4.00 = ?
13. £3.50 – £1.00 = ?
14. £5.50 – £2.00 = ?
15. £10.00 – £5.50 = ?
16. £6.50 – £3.50 = ?
17. £8.50 – £2.50 = ?
18. £1.50 – £0.50 = ?
19. £5.00 – £2.00 = ?
20. £7.00 – £3.00 = ?

Medium Level Questions (20 Questions)

1. £3.75 – £1.50 = ?
2. £4.25 – £2.75 = ?
3. £10.00 – £4.50 = ?
4. £6.80 – £3.20 = ?
5. £8.90 – £5.40 = ?
6. £12.00 – £6.25 = ?
7. £9.30 – £4.80 = ?
8. £5.55 – £2.10 = ?
9. £14.00 – £7.75 = ?
10. £2.50 – £1.90 = ?
11. £11.00 – £3.60 = ?
12. £15.00 – £8.25 = ?
13. £4.70 – £2.30 = ?
14. £7.80 – £5.10 = ?
15. £9.99 – £3.99 = ?
16. £5.60 – £2.20 = ?
17. £8.10 – £4.05 = ?
18. £3.90 – £1.25 = ?
19. £6.60 – £3.30 = ?
20. £12.50 – £7.00 = ?

Hard Level Questions (20 Questions)

1. £15.00 – £6.75 = ?
2. £8.95 – £4.55 = ?
3. £19.99 – £9.99 = ?
4. £25.00 – £14.50 = ?
5. £30.00 – £12.25 = ?
6. £50.00 – £22.50 = ?
7. £40.00 – £19.99 = ?
8. £100.00 – £75.00 = ?
9. £45.50 – £23.75 = ?
10. £60.00 – £30.10 = ?
11. £72.50 – £35.00 = ?
12. £80.00 – £45.25 = ?
13. £90.00 – £55.50 = ?
14. £55.00 – £30.50 = ?
15. £70.00 – £40.60 = ?
16. £25.50 – £15.25 = ?
17. £65.00 – £32.75 = ?
18. £88.00 – £44.99 = ?
19. £33.33 – £15.15 = ?
20. £10.50 – £2.75 = ?

Answers and Explanations

Easy Level Answers

1. £2.00
2. £2.50
3. £1.50
4. £1.50
5. £5.00
6. £4.00
7. £3.00
8. £5.00
9. £0.50
10. £0.50
11. £2.50
12. £5.00
13. £2.50
14. £3.50
15. £4.50
16. £3.00
17. £6.00
18. £1.00
19. £3.00
20. £4.00

Medium Level Answers

1. £2.25
2. £1.50
3. £5.50
4. £3.60
5. £3.50
6. £5.75
7. £4.50
8. £3.45
9. £6.25
10. £0.60
11. £7.40
12. £6.75
13. £2.40
14. £2.70
15. £6.00
16. £3.40
17. £4.05
18. £2.65
19. £3.30
20. £5.50

Hard Level Answers

1. £8.25
2. £4.40
3. £10.00
4. £10.50
5. £17.75
6. £27.50
7. £20.01
8. £25.00
9. £21.75
10. £29.90
11. £37.50
12. £34.75
13. £34.50
14. £24.50
15. £29.40
16. £10.25
17. £32.25
18. £43.01
19. £18.18
20. £7.75

Great job, Year 4! Keep practicing your subtraction with money, and soon you’ll be a pro!