PSLE Abi had a rectangular piece of paper, 57.4 cm by 33 cm. She cut out as many squares as possible from the paper. The side of each square was 3 cm.
- How many squares did Abi cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out lengthwise
= 57.4 ÷ 3
= 19 r 0.4
Number of squares that can be cut out breadthwise
= 33 ÷ 3
= 11 r 0
Total number of squares
= 11 x 19
= 209
(b)
Remaining length of the paper left = 0.4 cm
Area of the paper left
= 0.4 x 33
= 13.2 cm
2 Answer(s): (a) 209; (b) 13.2 cm
2