PSLE Abi had a rectangular piece of paper, 47.9 cm by 30 cm. She cut out as many squares as possible from the paper. The side of each square was 3 cm.
- How many squares did Abi cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 47.9 ÷ 3
= 15 r 2.9
Number of squares that can be cut out breadthwise
= 30 ÷ 3
= 10 r 0
Total number of squares
= 10 x 15
= 150
(b)
Remaining length of the paper left = 2.9 cm
Area of the paper left
= 2.9 x 30
= 87 cm
2 Answer(s): (a) 150; (b) 87 cm
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