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Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 100 · 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 4 right and 7 wrong. What is Lakshmi’s score?
  2. 2.What is (−20) ÷ 5? (a) 4 (b) −3 (c) −4 (d) −5
  3. 3.What is (−3) × 4? (a) 12 (b) −12 (c) −15 (d) −7
  4. 4.What is (−7) × (−9)? =
  5. 5.What is (−12) ÷ (−2)? =
  6. 6.What is (−5) × 9? (a) −50 (b) −14 (c) 45 (d) −45
  7. 7.What is (−11) × (−3)? =
  8. 8.What is (−8) × (−9)? =
  9. 9.What is (−4) ÷ 2? (a) 2 (b) −3 (c) −2 (d) −1
  10. 10.What is (−30) ÷ (−6)? =
  11. 11.What is (−48) ÷ 8? (a) −7 (b) −6 (c) 6 (d) −5
  12. 12.In a quiz, a right answer gets +5 marks and a wrong answer gets −2 marks. Vivaan got 14 right and 6 wrong. What is Vivaan’s score?
  13. 13.What is 9 ÷ (−3)? (a) −3 (b) −4 (c) 3 (d) −2
  14. 14.Is 6 × (−3) × 3 × 1 × 1 positive or negative? (a) Positive (b) Negative
  15. 15.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Rohan got 10 right and 1 wrong. What is Rohan’s score?
  16. 16.What is (−9) × (−7)? =
  17. 17.What is 3 × (−8)? (a) −27 (b) −24 (c) 24 (d) −11
  18. 18.What is (−4) × 9? (a) −36 (b) −13 (c) −40 (d) 36
  19. 19.In a quiz, a right answer gets +4 marks and a wrong answer gets −2 marks. Ishaan got 13 right and 5 wrong. What is Ishaan’s score?
  20. 20.In a quiz, a right answer gets +2 marks and a wrong answer gets −2 marks. Ishaan got 5 right and 3 wrong. What is Ishaan’s score?
  21. 21.What is (−9) × (−3)? =
  22. 22.What is (−72) ÷ (−9)? =
  23. 23.What is (−5) × 6? (a) −11 (b) −35 (c) 30 (d) −30
  24. 24.Is (−3) × (−4) × 9 × (−4) × 2 positive or negative? (a) Positive (b) Negative
  25. 25.What is (−3) × (−5)? =
  26. 26.What is (−3) × 12? (a) −39 (b) −15 (c) −36 (d) 36
  27. 27.What is (−12) × (−3)? =
  28. 28.What is (−50) ÷ 5? (a) 10 (b) −9 (c) −11 (d) −10
  29. 29.What is 9 × (−10)? (a) −19 (b) −90 (c) 90 (d) −99
  30. 30.What is (−7) × 12? (a) 84 (b) −91 (c) −84 (d) −19
  31. 31.What is (−4) × 11? (a) 44 (b) −48 (c) −15 (d) −44
  32. 32.What is (−16) ÷ (−4)? =
  33. 33.What is (−8) × (−4)? =
  34. 34.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Aarav got 13 right and 5 wrong. What is Aarav’s score?
  35. 35.Is (−2) × 9 × 6 × 3 positive or negative? (a) Positive (b) Negative
  36. 36.What is (−9) ÷ 3? (a) 3 (b) −3 (c) −2 (d) −4
  37. 37.What is (−12) ÷ 6? (a) −1 (b) −3 (c) 2 (d) −2
  38. 38.What is (−3) × (−11)? =
  39. 39.What is (−6) ÷ (−2)? =
  40. 40.Is 7 × (−9) × 6 × 1 positive or negative? (a) Negative (b) Positive

Answer key

  1. 2
  2. −4
  3. −12
  4. 63
  5. 6
  6. −45
  7. 33
  8. 72
  9. −2
  10. 5
  11. −6
  12. 58
  13. −3
  14. Negative
  15. 49
  16. 63
  17. −24
  18. −36
  19. 42
  20. 4
  21. 27
  22. 8
  23. −30
  24. Negative
  25. 15
  26. −36
  27. 36
  28. −10
  29. −90
  30. −84
  31. −44
  32. 4
  33. 32
  34. 60
  35. Negative
  36. −3
  37. −2
  38. 33
  39. 3
  40. Negative

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