PSLE Roshel had a rectangular piece of paper, 48.6 cm by 24 cm. She cut out as many squares as possible from the paper. The side of each square was 4 cm.
- How many squares did Roshel cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 48.6 ÷ 4
= 12 r 0.6
Number of squares that can be cut out breadthwise
= 24 ÷ 4
= 6 r 0
Total number of squares
= 6 x 12
= 72
(b)
Remaining length of the paper left = 0.6 cm
Area of the paper left
= 0.6 x 24
= 14.4 cm
2 Answer(s): (a) 72; (b) 14.4 cm
2