PSLE Barbara had a rectangular piece of paper, 41.6 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 Barbara cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 41.6 ÷ 3
= 13 r 2.6
Number of squares that can be cut out breadthwise
= 27 ÷ 3
= 9 r 0
Total number of squares
= 9 x 13
= 117
(b)
Remaining length of the paper left = 2.6 cm
Area of the paper left
= 2.6 x 27
= 70.2 cm
2 Answer(s): (a) 117; (b) 70.2 cm
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