PSLE Irene had a rectangular piece of paper, 60.4 cm by 40 cm. She cut out as many squares as possible from the paper. The side of each square was 5 cm.
- How many squares did Irene cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 60.4 ÷ 5
= 12 r 0.4
Number of squares that can be cut out breadthwise
= 40 ÷ 5
= 8 r 0
Total number of squares
= 8 x 12
= 96
(b)
Remaining length of the paper left = 0.4 cm
Area of the paper left
= 0.4 x 40
= 16 cm
2 Answer(s): (a) 96; (b) 16 cm
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