PSLE Kathy had a rectangular piece of paper, 57 cm by 30.6 cm. She cut out as many squares as possible from the paper. The side of each square was 3 cm.
- How many squares did Kathy cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 30.6 ÷ 3
= 10 r 0.6
Number of squares that can be cut out lengthwise
= 57 ÷ 3
= 19 r 0
Total number of squares
= 19 x 10
= 190
(b)
Remaining breadth of the paper left = 0.6 cm
Area of the paper left
= 57 x 0.6
= 34.2 cm
2 Answer(s): (a) 190; (b) 34.2 cm
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