Borrowing Can Cost More
Today I can explain why borrowed money can cost more than the amount borrowed.
A Look back3 min
- 1.
Priya saves £5 every week for 4 weeks. How much has she saved altogether? £
- 2.
Sam puts £100 in a savings account. It earns £2 interest in a year. How much is in the account now? £
- 3.
Bea has 45p. A sticker costs 54p. Write < or > in the box: 45p 54p
B Watch me, then you4 min
Mia wants a £50 game but has no money today. She buys it on credit. The card adds 10% interest for each year she owes the money. She pays it all back after one year.

The game costs £50, so Mia borrows £50.
10% of £50 is £5. That is the interest.
£50 + £5 = £55, so Mia must pay back £55.
- 1.
Leo borrows £40 on a card. The interest is 10%. How much must he pay back in total? £
C Your turn8 min
Each loan is paid back after one year. Add one year of interest, then answer.
- 1.
Kit borrows £20. The interest is 10%. How much must he pay back in total? £
- 2.
Kit borrows £40. The interest is 10%. How much must he pay back in total? £
- 3.
Kit borrows £40. The interest is 20%. How much must he pay back in total? £
- 4.
Zara borrowed £40 and now owes £44 in total. She pays it back in two equal payments. How much is each payment? £
Say it out loud: What changed from one question to the next, and what stayed the same?
D Spot the mistake3 min
- 1.
Is Kit right? Explain in one or two sentences.
E Think deeper4 min
- 1.
Ola pays £60 now for a game. Noah borrows £60 at 20% interest and pays it all back after a year. Who pays more, and how do you know? Then say one thing a family with little spare money could do instead.