PSLE Emily had a rectangular piece of paper, 55 cm by 38.1 cm. She cut out as many squares as possible from the paper. The side of each square was 5 cm.
- How many squares did Emily cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 38.1 ÷ 5
= 7 r 3.1
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 = 3.1 cm
Area of the paper left
= 55 x 3.1
= 170.5 cm
2 Answer(s): (a) 77; (b) 170.5 cm
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