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Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 253 · 40 sums
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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.

NameDateTime takenScore ___ / 40
  1. 1.In a quiz, a right answer gets +4 marks and a wrong answer gets −2 marks. Lakshmi got 9 right and 9 wrong. What is Lakshmi’s score?
  2. 2.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Riya got 6 right and 6 wrong. What is Riya’s score?
  3. 3.What is 3 × (−11)? (a) −36 (b) −33 (c) 33 (d) −14
  4. 4.What is (−2) × (−8)? =
  5. 5.What is (−30) ÷ (−5)? =
  6. 6.In a quiz, a right answer gets +4 marks and a wrong answer gets −1 mark. Rohan got 10 right and 2 wrong. What is Rohan’s score?
  7. 7.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Ishaan got 6 right and 1 wrong. What is Ishaan’s score?
  8. 8.What is (−3) × (−3)? =
  9. 9.What is (−6) × (−12)? =
  10. 10.What is 12 × (−3)? (a) 36 (b) −15 (c) −48 (d) −36
  11. 11.What is (−3) × 8? (a) 24 (b) −27 (c) −11 (d) −24
  12. 12.What is (−30) ÷ (−3)? =
  13. 13.Is (−5) × 6 × 7 × 9 positive or negative? (a) Positive (b) Negative
  14. 14.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Kabir got 14 right and 5 wrong. What is Kabir’s score?
  15. 15.What is (−9) × (−7)? =
  16. 16.What is 8 × (−9)? (a) −17 (b) −80 (c) 72 (d) −72
  17. 17.What is (−42) ÷ (−7)? =
  18. 18.What is 20 ÷ (−10)? (a) −1 (b) −3 (c) −2 (d) 2
  19. 19.What is (−16) ÷ 8? (a) 2 (b) −3 (c) −2 (d) −1
  20. 20.Is 2 × (−8) × 9 × 3 positive or negative? (a) Negative (b) Positive
  21. 21.What is 10 × (−6)? (a) −16 (b) 60 (c) −60 (d) −70
  22. 22.What is (−108) ÷ 9? (a) −13 (b) 12 (c) −12 (d) −11
  23. 23.What is (−6) × (−5)? =
  24. 24.Is (−8) × (−3) × 3 × 3 positive or negative? (a) Positive (b) Negative
  25. 25.What is (−11) × (−9)? =
  26. 26.Is (−1) × (−1) × 6 × (−7) × 8 positive or negative? (a) Positive (b) Negative
  27. 27.Is 9 × (−1) × (−7) × 1 positive or negative? (a) Negative (b) Positive
  28. 28.What is (−3) × (−7)? =
  29. 29.What is (−9) × 6? (a) 54 (b) −63 (c) −15 (d) −54
  30. 30.Is 3 × 3 × 3 positive or negative? (a) Positive (b) Negative
  31. 31.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Sneha got 14 right and 4 wrong. What is Sneha’s score?
  32. 32.What is (−8) × 9? (a) −17 (b) −72 (c) 72 (d) −80
  33. 33.Is (−9) × 9 × 1 positive or negative? (a) Positive (b) Negative
  34. 34.What is 9 ÷ (−3)? (a) −4 (b) −3 (c) 3 (d) −2
  35. 35.What is 4 × (−11)? (a) −44 (b) −15 (c) 44 (d) −48
  36. 36.In a quiz, a right answer gets +3 marks and a wrong answer gets −2 marks. Nisha got 7 right and 8 wrong. What is Nisha’s score?
  37. 37.What is 3 × (−12)? (a) 36 (b) −39 (c) −36 (d) −15
  38. 38.What is 16 ÷ (−2)? (a) 8 (b) −8 (c) −9 (d) −7
  39. 39.In a quiz, a right answer gets +3 marks and a wrong answer gets −2 marks. Sneha got 14 right and 5 wrong. What is Sneha’s score?
  40. 40.In a quiz, a right answer gets +3 marks and a wrong answer gets −1 mark. Karan got 12 right and 3 wrong. What is Karan’s score?

Answer key

  1. 18
  2. 6
  3. −33
  4. 16
  5. 6
  6. 38
  7. 29
  8. 9
  9. 72
  10. −36
  11. −24
  12. 10
  13. Negative
  14. 23
  15. 63
  16. −72
  17. 6
  18. −2
  19. −2
  20. Negative
  21. −60
  22. −12
  23. 30
  24. Positive
  25. 99
  26. Negative
  27. Positive
  28. 21
  29. −54
  30. Positive
  31. 66
  32. −72
  33. Negative
  34. −3
  35. −44
  36. 5
  37. −36
  38. −8
  39. 32
  40. 33

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