Question
PSLE
Kathy used 78 kg of flour to make wafers and 310 kg of flour to make tarts. After that, she had 400 g of flour left. How many kilograms of flour did she have at first?
2 m

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PSLE
Kathy used 78 kg of flour to make wafers and 310 kg of flour to make tarts. After that, she had 400 g of flour left. How many kilograms of flour did she have at first?