Tap coins and notes to drop them in the purse. Watch the total grow. When you reach 100p, that's £1. So 135p = £1.35 — the dot splits the pounds from the pence.
If something costs 70p and you pay with £1 (that's 100p), your change is what's left over: 100p − 70p = 30p. Change is just take-away.
1. Find two different ways to make 50p. One 50p coin · or 20p + 20p + 10p · or 20p + 10p + 10p + 5p + 5p. Lots of ways!
2. Word problem: You buy a 45p toy and pay with £1. What's your change? 100p − 45p = 55p change.
3. £1.20 + 80p = ? 120p + 80p = 200p = £2.00.
4. You have 3 × 20p + 2 × 10p. Is that enough for an 85p drink? 60p + 20p = 80p. No — you're 5p short!
Every coin and note is worth a number of pence. Add them up; once you pass 100, swap each 100p for £1.
Pounds use a decimal point: the digits after the dot are the pence. £1.35 means 1 pound and 35 pence. Money is just careful adding and subtracting.