PSLE Marion had a rectangular piece of paper, 80 cm by 39.3 cm. She cut out as many squares as possible from the paper. The side of each square was 5 cm.
- How many squares did Marion cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 39.3 ÷ 5
= 7 r 4.3
Number of squares that can be cut out lengthwise
= 80 ÷ 5
= 16 r 0
Total number of squares
= 16 x 7
= 112
(b)
Remaining breadth of the paper left = 4.3 cm
Area of the paper left
= 80 x 4.3
= 344 cm
2 Answer(s): (a) 112; (b) 344 cm
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