Question
PSLE
Cathy had a bottle of milk. She drank 550 mℓ of milk in the evening and 37 of remaining milk at night. After that, there was 13 a bottle of milk left. How much of the milk did she drink at night?
2 m

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PSLE
Cathy had a bottle of milk. She drank 550 mℓ of milk in the evening and 37 of remaining milk at night. After that, there was 13 a bottle of milk left. How much of the milk did she drink at night?