Question
Mrs Cathy bought a 2-litre bottle of oil. She used 12 ℓ of the oil in January and 25 ℓ in February. How much oil had she left?
3 m

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Mrs Cathy bought a 2-litre bottle of oil. She used 12 ℓ of the oil in January and 25 ℓ in February. How much oil had she left?