PSLE Olivia had a rectangular piece of paper, 50.5 cm by 33 cm. She cut out as many squares as possible from the paper. The side of each square was 3 cm.
- How many squares did Olivia cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 50.5 ÷ 3
= 16 r 2.5
Number of squares that can be cut out breadthwise
= 33 ÷ 3
= 11 r 0
Total number of squares
= 11 x 16
= 176
(b)
Remaining length of the paper left = 2.5 cm
Area of the paper left
= 2.5 x 33
= 82.5 cm
2 Answer(s): (a) 176; (b) 82.5 cm
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