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Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 156 · 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.Is (−3) × (−3) × (−7) × (−4) positive or negative? (a) Negative (b) Positive
  2. 2.What is 5 × (−11)? (a) −16 (b) −60 (c) 55 (d) −55
  3. 3.What is (−2) × 6? (a) −8 (b) −12 (c) 12 (d) −14
  4. 4.What is 7 × (−4)? (a) 28 (b) −11 (c) −35 (d) −28
  5. 5.What is (−2) × (−7)? =
  6. 6.What is (−12) ÷ (−4)? =
  7. 7.What is (−35) ÷ (−7)? =
  8. 8.What is 24 ÷ (−12)? (a) −1 (b) 2 (c) −2 (d) −3
  9. 9.Is 3 × (−4) × (−6) × (−7) positive or negative? (a) Negative (b) Positive
  10. 10.In a quiz, a right answer gets +3 marks and a wrong answer gets −2 marks. Saanvi got 14 right and 10 wrong. What is Saanvi’s score?
  11. 11.What is (−11) × (−4)? =
  12. 12.Is (−7) × 8 × (−3) × (−6) positive or negative? (a) Positive (b) Negative
  13. 13.What is (−12) × 4? (a) 48 (b) −48 (c) −60 (d) −16
  14. 14.What is (−7) × (−11)? =
  15. 15.Is (−2) × 9 × (−1) × 1 positive or negative? (a) Positive (b) Negative
  16. 16.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Dev got 8 right and 9 wrong. What is Dev’s score?
  17. 17.What is 2 × (−8)? (a) −18 (b) 16 (c) −10 (d) −16
  18. 18.What is (−9) × (−12)? =
  19. 19.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Nisha got 13 right and 10 wrong. What is Nisha’s score?
  20. 20.What is (−60) ÷ (−5)? =
  21. 21.What is (−9) × (−10)? =
  22. 22.Is 6 × (−1) × (−2) positive or negative? (a) Negative (b) Positive
  23. 23.What is (−40) ÷ 4? (a) −10 (b) −9 (c) −11 (d) 10
  24. 24.What is 10 × (−12)? (a) −120 (b) −130 (c) 120 (d) −22
  25. 25.What is 9 × (−9)? (a) −90 (b) −18 (c) −81 (d) 81
  26. 26.What is (−6) × (−11)? =
  27. 27.What is 12 × (−10)? (a) −22 (b) 120 (c) −120 (d) −132
  28. 28.What is (−8) ÷ (−4)? =
  29. 29.Is (−3) × (−1) × (−3) positive or negative? (a) Negative (b) Positive
  30. 30.What is (−9) × 9? (a) 81 (b) −18 (c) −90 (d) −81
  31. 31.What is (−6) × 2? (a) −18 (b) −12 (c) −8 (d) 12
  32. 32.What is (−36) ÷ (−3)? =
  33. 33.What is 6 × (−2)? (a) −8 (b) 12 (c) −12 (d) −18
  34. 34.In a quiz, a right answer gets +4 marks and a wrong answer gets −1 mark. Gurpreet got 13 right and 3 wrong. What is Gurpreet’s score?
  35. 35.What is (−22) ÷ 11? (a) −2 (b) −1 (c) −3 (d) 2
  36. 36.What is (−12) ÷ 3? (a) −4 (b) −5 (c) −3 (d) 4
  37. 37.What is (−10) × (−11)? =
  38. 38.What is (−8) × (−2)? =
  39. 39.What is 7 × (−12)? (a) −84 (b) 84 (c) −19 (d) −91
  40. 40.Is (−7) × (−7) × (−8) × 3 × 6 positive or negative? (a) Positive (b) Negative

Answer key

  1. Positive
  2. −55
  3. −12
  4. −28
  5. 14
  6. 3
  7. 5
  8. −2
  9. Negative
  10. 22
  11. 44
  12. Negative
  13. −48
  14. 77
  15. Positive
  16. 7
  17. −16
  18. 108
  19. 55
  20. 12
  21. 90
  22. Positive
  23. −10
  24. −120
  25. −81
  26. 66
  27. −120
  28. 2
  29. Negative
  30. −81
  31. −12
  32. 12
  33. −12
  34. 49
  35. −2
  36. −4
  37. 110
  38. 16
  39. −84
  40. Negative

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