PSLE Erika had a rectangular piece of paper, 41.8 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 Erika cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 41.8 ÷ 4
= 10 r 1.8
Number of squares that can be cut out breadthwise
= 32 ÷ 4
= 8 r 0
Total number of squares
= 8 x 10
= 80
(b)
Remaining length of the paper left = 1.8 cm
Area of the paper left
= 1.8 x 32
= 57.6 cm
2 Answer(s): (a) 80; (b) 57.6 cm
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