Problem 1 · 2017 Math Kangaroo
Medium
Arithmetic & Operations
order-of-operationsplace-value
The value of \(\dfrac{20 \cdot 17}{2 + 0 + 1 + 7}\) equals
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Answer: C — 34
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Hint 1 of 2
Work out the top and the bottom separately before dividing.
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Hint 2 of 2
The denominator is a sum of single digits, not a number.
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Approach: evaluate numerator and denominator, then divide
- Numerator: 20 × 17 = 340.
- Denominator: 2 + 0 + 1 + 7 = 10.
- 340 ÷ 10 = 34, choice C.
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