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Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 645 · 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 −1 mark. Ishaan got 8 right and 8 wrong. What is Ishaan’s score?
  2. 2.What is (−11) × 6? (a) −66 (b) 66 (c) −77 (d) −17
  3. 3.What is (−20) ÷ 4? (a) −4 (b) −6 (c) 5 (d) −5
  4. 4.What is (−10) × (−4)? =
  5. 5.What is (−72) ÷ (−6)? =
  6. 6.What is (−9) × 5? (a) −14 (b) −45 (c) −54 (d) 45
  7. 7.Is 8 × (−7) × (−8) × (−3) positive or negative? (a) Positive (b) Negative
  8. 8.Is 3 × (−8) × (−8) × (−2) × 6 positive or negative? (a) Negative (b) Positive
  9. 9.Is 8 × (−1) × (−1) 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. Ananya got 10 right and 10 wrong. What is Ananya’s score?
  11. 11.What is 30 ÷ (−5)? (a) −5 (b) −6 (c) 6 (d) −7
  12. 12.What is (−22) ÷ (−11)? =
  13. 13.What is (−10) ÷ 2? (a) 5 (b) −6 (c) −5 (d) −4
  14. 14.What is (−99) ÷ (−11)? =
  15. 15.What is (−10) × (−11)? =
  16. 16.What is (−132) ÷ 12? (a) 11 (b) −12 (c) −11 (d) −10
  17. 17.What is (−3) × (−8)? =
  18. 18.What is (−2) × (−4)? =
  19. 19.What is (−5) × (−9)? =
  20. 20.What is (−14) ÷ 2? (a) −6 (b) −8 (c) −7 (d) 7
  21. 21.What is 2 × (−5)? (a) 10 (b) −10 (c) −12 (d) −7
  22. 22.In a quiz, a right answer gets +4 marks and a wrong answer gets −1 mark. Lakshmi got 8 right and 2 wrong. What is Lakshmi’s score?
  23. 23.What is (−33) ÷ (−3)? =
  24. 24.What is (−10) × (−10)? =
  25. 25.What is (−11) × 7? (a) −88 (b) −77 (c) 77 (d) −18
  26. 26.What is (−49) ÷ 7? (a) 7 (b) −7 (c) −6 (d) −8
  27. 27.In a quiz, a right answer gets +4 marks and a wrong answer gets −1 mark. Isha got 13 right and 9 wrong. What is Isha’s score?
  28. 28.Is (−4) × 3 × (−1) × 6 positive or negative? (a) Negative (b) Positive
  29. 29.What is (−77) ÷ (−11)? =
  30. 30.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Dev got 12 right and 8 wrong. What is Dev’s score?
  31. 31.What is (−5) × 4? (a) −9 (b) 20 (c) −20 (d) −25
  32. 32.What is 28 ÷ (−7)? (a) −4 (b) 4 (c) −5 (d) −3
  33. 33.What is (−12) × (−9)? =
  34. 34.What is (−10) × 4? (a) 40 (b) −40 (c) −14 (d) −50
  35. 35.Is (−6) × 6 × (−5) × (−3) × (−8) positive or negative? (a) Negative (b) Positive
  36. 36.What is (−2) × 9? (a) −11 (b) −20 (c) 18 (d) −18
  37. 37.Is 6 × 4 × (−9) × 5 positive or negative? (a) Negative (b) Positive
  38. 38.What is 7 × (−10)? (a) 70 (b) −17 (c) −77 (d) −70
  39. 39.What is (−9) ÷ (−3)? =
  40. 40.What is 6 × (−4)? (a) −30 (b) −10 (c) −24 (d) 24

Answer key

  1. 24
  2. −66
  3. −5
  4. 40
  5. 12
  6. −45
  7. Negative
  8. Negative
  9. Positive
  10. 10
  11. −6
  12. 2
  13. −5
  14. 9
  15. 110
  16. −11
  17. 24
  18. 8
  19. 45
  20. −7
  21. −10
  22. 30
  23. 11
  24. 100
  25. −77
  26. −7
  27. 43
  28. Positive
  29. 7
  30. 52
  31. −20
  32. −4
  33. 108
  34. −40
  35. Positive
  36. −18
  37. Negative
  38. −70
  39. 3
  40. −24

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