Question
Mr Yap's lorry was left with 13 fuel. He added 12 ℓ of fuel to his lorry, it became 59 full. How much more fuel was needed to fill up Mr Yap's lorry?
4 m

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Mr Yap's lorry was left with 13 fuel. He added 12 ℓ of fuel to his lorry, it became 59 full. How much more fuel was needed to fill up Mr Yap's lorry?