If you want to find 10%..., divide by 100, divide by 10, divide by 5, divide by 2, What's 10% of £30?, £6, £3, £9, £12, If you want to find 50%..., divide by 100, divide by 10, divide by 5, divide by 2, What's 50% of £30?, £10, £20, £9, £15, If you want to find 13%, divide by 100 and multiply by 13, divide by 10 and multiply by 13., divide by 13 and multiply by 100., What's 13% of £200?, £24, £28, £26, £30, What's 20% of £2?, 40p, 30p, 50p, £1.20, In our example the customer had a £20 voucher and spent £19.65. What change should we give them?, 25p, 30p, 35p, 40p.

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