PSLE Mary had a rectangular piece of paper, 52 cm by 37.3 cm. She cut out as many squares as possible from the paper. The side of each square was 4 cm.
- How many squares did Mary cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 37.3 ÷ 4
= 9 r 1.3
Number of squares that can be cut out lengthwise
= 52 ÷ 4
= 13 r 0
Total number of squares
= 13 x 9
= 117
(b)
Remaining breadth of the paper left = 1.3 cm
Area of the paper left
= 52 x 1.3
= 67.6 cm
2 Answer(s): (a) 117; (b) 67.6 cm
2