Question
Mrs Cody sold 420 biscuits on Tuesday. She sold 189 fewer biscuits on Wednesday than on Tuesday. She sold 330 biscuits on Thursday. How many biscuits did Mrs Cody sell on for the 3 days?
4 m

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Mrs Cody sold 420 biscuits on Tuesday. She sold 189 fewer biscuits on Wednesday than on Tuesday. She sold 330 biscuits on Thursday. How many biscuits did Mrs Cody sell on for the 3 days?