PSLE Jaslyn had a rectangular piece of paper, 48.7 cm by 24 cm. She cut out as many squares as possible from the paper. The side of each square was 3 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
= 48.7 ÷ 3
= 16 r 0.7
Number of squares that can be cut out breadthwise
= 24 ÷ 3
= 8 r 0
Total number of squares
= 8 x 16
= 128
(b)
Remaining length of the paper left = 0.7 cm
Area of the paper left
= 0.7 x 24
= 16.8 cm
2 Answer(s): (a) 128; (b) 16.8 cm
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