PSLE Tiffany had a rectangular piece of paper, 51 cm by 35.6 cm. She cut out as many squares as possible from the paper. The side of each square was 3 cm.
- How many squares did Tiffany cut out?
- What area of the paper was left?
(a)
Number of squares that can be cut out breadthwise
= 35.6 ÷ 3
= 11 r 2.6
Number of squares that can be cut out lengthwise
= 51 ÷ 3
= 17 r 0
Total number of squares
= 17 x 11
= 187
(b)
Remaining breadth of the paper left = 2.6 cm
Area of the paper left
= 51 x 2.6
= 132.6 cm
2 Answer(s): (a) 187; (b) 132.6 cm
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