Civil Service Exam Reviewer · Basic Operations · hard
Evaluate: 39 − [77 − (8 × 9 − 40)] ÷ 5
- 30
- 48
- -1.2
- -6
Answer
A. 30
Solution
Innermost: 8×9 − 40 = 32. Brackets: 77 − 32 = 45. ÷ 5 = 9. Then 39 − 9 = 30.
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