Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 629 · 40 sums

The method (Same signs plus, different signs minus): (+) × (+) = (+), (−) × (−) = (+), (+) × (−) = (−), (−) × (+) = (−). Division follows the same rules. Work out the sizes first: (−6) × 7 → 6 × 7 = 42, then the sign: −42. Many factors: an even number of minus signs → positive; odd → negative. Scores with minus marks: add the plus marks, take away the minus marks.

1. 1.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Meera got 13 right and 1 wrong. What is Meera’s score?
2. 2.In a quiz, a right answer gets +4 marks and a wrong answer gets −2 marks. Aditya got 9 right and 1 wrong. What is Aditya’s score?
3. 3.Is (−7) × (−7) × (−3) × (−5) × (−8) positive or negative? (a) Positive (b) Negative
4. 4.Is (−6) × (−4) × 5 × 8 positive or negative? (a) Positive (b) Negative
5. 5.Is 3 × 5 × (−9) × (−6) positive or negative? (a) Positive (b) Negative
6. 6.In a quiz, a right answer gets +3 marks and a wrong answer gets −1 mark. Zoya got 11 right and 8 wrong. What is Zoya’s score?
7. 7.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Rahul got 11 right and 3 wrong. What is Rahul’s score?
8. 8.What is (−8) × (−12)? =
9. 9.What is (−4) × (−5)? =
10. 10.Is (−7) × 8 × 5 positive or negative? (a) Negative (b) Positive
11. 11.What is (−3) × (−6)? =
12. 12.What is (−6) × (−4)? =
13. 13.What is (−3) × (−2)? =
14. 14.What is 5 × (−3)? (a) 15 (b) −8 (c) −20 (d) −15
15. 15.In a quiz, a right answer gets +4 marks and a wrong answer gets −1 mark. Dev got 4 right and 8 wrong. What is Dev’s score?
16. 16.What is (−24) ÷ (−4)? =
17. 17.Is (−3) × 4 × (−2) × 5 × 3 positive or negative? (a) Negative (b) Positive
18. 18.In a quiz, a right answer gets +3 marks and a wrong answer gets −1 mark. Pooja got 9 right and 7 wrong. What is Pooja’s score?
19. 19.In a quiz, a right answer gets +4 marks and a wrong answer gets −2 marks. Ananya got 9 right and 2 wrong. What is Ananya’s score?
20. 20.What is (−2) × 12? (a) −14 (b) 24 (c) −26 (d) −24
21. 21.What is 2 × (−4)? (a) 8 (b) −8 (c) −10 (d) −6
22. 22.In a quiz, a right answer gets +3 marks and a wrong answer gets −2 marks. Kabir got 10 right and 3 wrong. What is Kabir’s score?
23. 23.What is (−80) ÷ 8? (a) −9 (b) −11 (c) −10 (d) 10
24. 24.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Isha got 9 right and 6 wrong. What is Isha’s score?
25. 25.Is (−8) × 6 × (−6) × (−5) × (−1) positive or negative? (a) Negative (b) Positive
26. 26.What is (−108) ÷ (−12)? =
27. 27.What is (−11) × (−3)? =
28. 28.What is (−6) × (−6)? =
29. 29.Is 3 × (−2) × 7 × (−7) × (−8) positive or negative? (a) Positive (b) Negative
30. 30.What is (−4) × 2? (a) 8 (b) −12 (c) −6 (d) −8
31. 31.What is (−32) ÷ (−4)? =
32. 32.What is (−108) ÷ (−9)? =
33. 33.What is (−35) ÷ (−5)? =
34. 34.In a quiz, a right answer gets +4 marks and a wrong answer gets −2 marks. Lakshmi got 8 right and 1 wrong. What is Lakshmi’s score?
35. 35.Is (−3) × 3 × 8 positive or negative? (a) Positive (b) Negative
36. 36.What is (−3) × (−4)? =
37. 37.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Gurpreet got 13 right and 5 wrong. What is Gurpreet’s score?
38. 38.What is (−49) ÷ (−7)? =
39. 39.In a quiz, a right answer gets +3 marks and a wrong answer gets −2 marks. Arjun got 13 right and 2 wrong. What is Arjun’s score?
40. 40.What is (−20) ÷ (−10)? =

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