[Quiz] Mathematical operations on positive and negative numbers

Welcome to Math Quiz number 42. These are grade (class) 5 questions based on mathematical operations on positive and negative numbers. These questions check students’ understanding of basic mathematical operations on expressions having both positive and negative numbers. Please do not use a calculator or online tool to answer these questions. Please comment if you find the wrong answers. Have fun!!!

1. 
(−2) × (−6) − (−10) + 20 − 30 = ?

2. 
5 × (−6) −20 + 25 − 10 ÷ 5 = ?

3. 
7 × 8 ÷ (−4) − (−10) + 25 = ?

4. 
(−25) ÷ (−5) + 6 × (−2) −15 = ?

5. 
(−36) ÷ 12 − (−10) × 5 + (−15) = ?

6. 
49 ÷ (−7) + 12 − (−8) × 2 + 20 = ?

7. 
(−81) ÷ (−9) × 2 − 10 + 15 − (−5) = ?

8. 
45 ÷ 9 − (−10) × 2 + (−25) + 6 × (−2) = ?

9. 
(−12) ÷ (−3) × 5 + 9 × (−2) = ?

10. 
63 ÷ (−9) × 2 − (−10) + 20 ÷ (−10) = ?

11. 
(−15) ÷ (−5) × 10 ÷ 2 − (−8) + 10 = ?

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