PSLE Kathy had a rectangular piece of paper, 48.1 cm by 24 cm. She cut out as many squares as possible from the paper. The side of each square was 4 cm.
- How many squares did Kathy cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 48.1 ÷ 4
= 12 r 0.1
Number of squares that can be cut out breadthwise
= 24 ÷ 4
= 6 r 0
Total number of squares
= 6 x 12
= 72
(b)
Remaining length of the paper left = 0.1 cm
Area of the paper left
= 0.1 x 24
= 2.4 cm
2 Answer(s): (a) 72; (b) 2.4 cm
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