PSLE Jaslyn had a rectangular piece of paper, 51.1 cm by 35 cm. She cut out as many squares as possible from the paper. The side of each square was 5 cm.
- How many squares did Jaslyn 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
= 35 ÷ 5
= 7 r 0
Total number of squares
= 7 x 10
= 70
(b)
Remaining length of the paper left = 1.1 cm
Area of the paper left
= 1.1 x 35
= 38.5 cm
2 Answer(s): (a) 70; (b) 38.5 cm
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