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Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 591 · 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 +3 marks and a wrong answer gets −2 marks. Arjun got 14 right and 7 wrong. What is Arjun’s score?
  2. 2.Is 3 × (−5) × (−9) positive or negative? (a) Negative (b) Positive
  3. 3.Is (−9) × (−5) × 3 × 2 positive or negative? (a) Negative (b) Positive
  4. 4.What is 14 ÷ (−2)? (a) 7 (b) −6 (c) −7 (d) −8
  5. 5.What is 132 ÷ (−11)? (a) −13 (b) −12 (c) −11 (d) 12
  6. 6.What is (−20) ÷ (−5)? =
  7. 7.What is (−6) × (−6)? =
  8. 8.What is 10 × (−10)? (a) 100 (b) −20 (c) −110 (d) −100
  9. 9.What is (−4) × (−3)? =
  10. 10.What is (−7) × (−12)? =
  11. 11.What is (−4) × (−7)? =
  12. 12.What is (−4) × 6? (a) 24 (b) −24 (c) −28 (d) −10
  13. 13.What is (−7) × (−4)? =
  14. 14.What is (−10) × (−5)? =
  15. 15.Is 5 × (−1) × (−6) positive or negative? (a) Negative (b) Positive
  16. 16.Is (−9) × 9 × (−6) positive or negative? (a) Positive (b) Negative
  17. 17.What is (−12) × (−5)? =
  18. 18.What is (−2) × (−2)? =
  19. 19.What is (−10) × (−11)? =
  20. 20.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Lakshmi got 15 right and 1 wrong. What is Lakshmi’s score?
  21. 21.What is (−10) × 4? (a) 40 (b) −50 (c) −40 (d) −14
  22. 22.In a quiz, a right answer gets +5 marks and a wrong answer gets −2 marks. Meera got 12 right and 9 wrong. What is Meera’s score?
  23. 23.What is (−11) × (−5)? =
  24. 24.What is 9 × (−2)? (a) −11 (b) −18 (c) −27 (d) 18
  25. 25.What is (−6) × 6? (a) 36 (b) −42 (c) −12 (d) −36
  26. 26.What is 3 × (−12)? (a) −39 (b) 36 (c) −15 (d) −36
  27. 27.What is 4 × (−5)? (a) −9 (b) −24 (c) 20 (d) −20
  28. 28.Is (−5) × (−2) × (−5) × (−7) × (−4) positive or negative? (a) Positive (b) Negative
  29. 29.What is (−50) ÷ (−5)? =
  30. 30.What is (−14) ÷ (−7)? =
  31. 31.Is 8 × 6 × 1 × (−1) positive or negative? (a) Negative (b) Positive
  32. 32.What is 16 ÷ (−4)? (a) 4 (b) −5 (c) −4 (d) −3
  33. 33.What is (−2) × (−7)? =
  34. 34.What is (−54) ÷ (−9)? =
  35. 35.What is (−96) ÷ (−12)? =
  36. 36.What is (−3) × 9? (a) −27 (b) −12 (c) −30 (d) 27
  37. 37.What is 20 ÷ (−2)? (a) −10 (b) 10 (c) −9 (d) −11
  38. 38.What is (−7) × (−7)? =
  39. 39.In a quiz, a right answer gets +2 marks and a wrong answer gets −1 mark. Joseph got 10 right and 1 wrong. What is Joseph’s score?
  40. 40.What is 27 ÷ (−9)? (a) −4 (b) 3 (c) −2 (d) −3

Answer key

  1. 28
  2. Positive
  3. Positive
  4. −7
  5. −12
  6. 4
  7. 36
  8. −100
  9. 12
  10. 84
  11. 28
  12. −24
  13. 28
  14. 50
  15. Positive
  16. Positive
  17. 60
  18. 4
  19. 110
  20. 29
  21. −40
  22. 42
  23. 55
  24. −18
  25. −36
  26. −36
  27. −20
  28. Negative
  29. 10
  30. 2
  31. Negative
  32. −4
  33. 14
  34. 6
  35. 8
  36. −27
  37. −10
  38. 49
  39. 19
  40. −3

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