PSLE Shiyun had a rectangular piece of paper, 68 cm by 36.4 cm. She cut out as many squares as possible from the paper. The side of each square was 4 cm.
- How many squares did Shiyun cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 36.4 ÷ 4
= 9 r 0.4
Number of squares that can be cut out lengthwise
= 68 ÷ 4
= 17 r 0
Total number of squares
= 17 x 9
= 153
(b)
Remaining breadth of the paper left = 0.4 cm
Area of the paper left
= 68 x 0.4
= 27.2 cm
2 Answer(s): (a) 153; (b) 27.2 cm
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