A bottle contained 2.25 liters of orange juice. Mrs Lim kept 1 liters 200 ml in the refrigerator and gave the remainder equally to her 3 children. How much orange juice did each child get? Give your answers in millilitres.
To find out how much orange juice each child received, we need to find the remainder after Mrs Lim kept 1 liters 200 ml in the refrigerator.
1 liter is equal to 1000 ml, so 1 liters 200 ml is equal to 1000 ml + 200 ml = 1200 ml.
The remainder after Mrs Lim kept 1 liters 200 ml in the refrigerator is 2250 ml - 1200 ml = 1050 ml.
Since the remainder is divided equally among her 3 children, each child received 1050 ml / 3 = 350 ml of orange juice. Answer: \boxed{350}.