PSLE Pamela had a rectangular piece of paper, 55 cm by 39.4 cm. She cut out as many squares as possible from the paper. The side of each square was 5 cm.
- How many squares did Pamela cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 39.4 ÷ 5
= 7 r 4.4
Number of squares that can be cut out lengthwise
= 55 ÷ 5
= 11 r 0
Total number of squares
= 11 x 7
= 77
(b)
Remaining breadth of the paper left = 4.4 cm
Area of the paper left
= 55 x 4.4
= 242 cm
2 Answer(s): (a) 77; (b) 242 cm
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