Advanced MathEasyDifference between two square rugs
Advanced Math practice question
A square rug's area, in square metres, is the square of its side length in metres. How many square metres larger is a rug with side 10 metres than a rug with side 9 metres?
Answer: 19
100 − 81 = 19.
Common wrong answers
- If you answered 1
- 1 is the difference in side length.
- If you answered 100
- 100 is the larger rug's area alone.
- If you answered 181
- 181 adds the two areas.
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