PSLE Gwen had a rectangular piece of paper, 52.2 cm by 32 cm. She cut out as many squares as possible from the paper. The side of each square was 4 cm.
- How many squares did Gwen cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 52.2 ÷ 4
= 13 r 0.2
Number of squares that can be cut out breadthwise
= 32 ÷ 4
= 8 r 0
Total number of squares
= 8 x 13
= 104
(b)
Remaining length of the paper left = 0.2 cm
Area of the paper left
= 0.2 x 32
= 6.4 cm
2 Answer(s): (a) 104; (b) 6.4 cm
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