PSLE Nora had a rectangular piece of paper, 48.3 cm by 27 cm. She cut out as many squares as possible from the paper. The side of each square was 3 cm.
- How many squares did Nora cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 48.3 ÷ 3
= 16 r 0.3
Number of squares that can be cut out breadthwise
= 27 ÷ 3
= 9 r 0
Total number of squares
= 9 x 16
= 144
(b)
Remaining length of the paper left = 0.3 cm
Area of the paper left
= 0.3 x 27
= 8.1 cm
2 Answer(s): (a) 144; (b) 8.1 cm
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