Civil Service Exam Reviewer · Basic Operations · medium

Evaluate: √64 + √49

1. 10.63
2. 113
3. 56
4. 15

Answer

D. 15

Solution

√64 = 8 and √49 = 7; 8 + 7 = 15. (Note: √x + √y ≠ √(x + y).)

More Basic Operations questions

1. What is the least common multiple (LCM) of 13 and 5?
2. What is the greatest common factor (GCF) of 15 and 35?
3. Evaluate: (−17) − (−6) × 3 + 12
4. Evaluate: 5² − 3³ + 5 × 2
5. Divide: 4.76 ÷ 0.14
6. Multiply: 4.4 × 3.59
7. Evaluate: (6/5) × (5/7) ÷ (8/6)
8. Evaluate: 15 + 4 × (12 − 3) ÷ 3
9. Multiply: 77 × 30
10. Evaluate: 55 − (−52)

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