PSLE Yoko had a rectangular piece of paper, 51.1 cm by 25 cm. She cut out as many squares as possible from the paper. The side of each square was 5 cm.
- How many squares did Yoko cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 51.1 ÷ 5
= 10 r 1.1
Number of squares that can be cut out breadthwise
= 25 ÷ 5
= 5 r 0
Total number of squares
= 5 x 10
= 50
(b)
Remaining length of the paper left = 1.1 cm
Area of the paper left
= 1.1 x 25
= 27.5 cm
2 Answer(s): (a) 50; (b) 27.5 cm
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