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Class 7 Maths Worksheet: Integers

Maths worksheets lesson 49: Integers: multiplying and dividing · Set 99 · 40 sums
TalentJR

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.What is (−12) × (−11)? =
  2. 2.What is (−10) × (−7)? =
  3. 3.What is (−6) × 5? (a) −36 (b) −11 (c) −30 (d) 30
  4. 4.What is 12 × (−6)? (a) −72 (b) 72 (c) −18 (d) −84
  5. 5.Is 3 × 7 × (−7) × (−6) × 2 positive or negative? (a) Negative (b) Positive
  6. 6.In a quiz, a right answer gets +3 marks and a wrong answer gets −2 marks. Dev got 10 right and 1 wrong. What is Dev’s score?
  7. 7.What is (−14) ÷ (−2)? =
  8. 8.What is (−4) × 5? (a) −9 (b) −20 (c) −24 (d) 20
  9. 9.In a quiz, a right answer gets +5 marks and a wrong answer gets −1 mark. Aarav got 7 right and 1 wrong. What is Aarav’s score?
  10. 10.What is (−60) ÷ (−12)? =
  11. 11.What is 3 × (−12)? (a) 36 (b) −15 (c) −39 (d) −36
  12. 12.What is (−3) × (−7)? =
  13. 13.What is (−8) × 3? (a) −32 (b) −11 (c) 24 (d) −24
  14. 14.What is 27 ÷ (−9)? (a) 3 (b) −4 (c) −3 (d) −2
  15. 15.Is (−4) × (−1) × (−2) × 2 × 2 positive or negative? (a) Negative (b) Positive
  16. 16.Is (−9) × 2 × 5 × 7 × (−5) positive or negative? (a) Positive (b) Negative
  17. 17.What is (−33) ÷ (−3)? =
  18. 18.What is 56 ÷ (−8)? (a) −7 (b) −6 (c) −8 (d) 7
  19. 19.What is (−7) × (−11)? =
  20. 20.What is 5 × (−5)? (a) 25 (b) −10 (c) −30 (d) −25
  21. 21.Is 3 × (−7) × (−4) positive or negative? (a) Positive (b) Negative
  22. 22.What is (−40) ÷ 10? (a) −5 (b) −3 (c) 4 (d) −4
  23. 23.Is 9 × 9 × 3 positive or negative? (a) Positive (b) Negative
  24. 24.What is (−9) × 7? (a) −16 (b) 63 (c) −72 (d) −63
  25. 25.What is 10 × (−12)? (a) −120 (b) −130 (c) 120 (d) −22
  26. 26.What is (−8) ÷ 4? (a) 2 (b) −3 (c) −1 (d) −2
  27. 27.What is (−9) × 3? (a) −27 (b) 27 (c) −12 (d) −36
  28. 28.Is 3 × (−1) × 1 positive or negative? (a) Positive (b) Negative
  29. 29.What is (−70) ÷ (−7)? =
  30. 30.What is (−6) × 2? (a) −18 (b) 12 (c) −12 (d) −8
  31. 31.Is 4 × (−1) × 7 × 3 positive or negative? (a) Negative (b) Positive
  32. 32.Is (−3) × 7 × 4 positive or negative? (a) Negative (b) Positive
  33. 33.What is (−12) × (−4)? =
  34. 34.What is (−40) ÷ (−8)? =
  35. 35.Is (−6) × 9 × 4 × 3 positive or negative? (a) Positive (b) Negative
  36. 36.What is (−81) ÷ 9? (a) 9 (b) −8 (c) −10 (d) −9
  37. 37.What is (−4) × (−7)? =
  38. 38.Is (−2) × (−8) × 8 × 9 × 1 positive or negative? (a) Positive (b) Negative
  39. 39.What is (−20) ÷ 4? (a) −5 (b) −4 (c) 5 (d) −6
  40. 40.Is (−5) × 4 × (−2) positive or negative? (a) Positive (b) Negative

Answer key

  1. 132
  2. 70
  3. −30
  4. −72
  5. Positive
  6. 28
  7. 7
  8. −20
  9. 34
  10. 5
  11. −36
  12. 21
  13. −24
  14. −3
  15. Negative
  16. Positive
  17. 11
  18. −7
  19. 77
  20. −25
  21. Positive
  22. −4
  23. Positive
  24. −63
  25. −120
  26. −2
  27. −27
  28. Negative
  29. 10
  30. −12
  31. Negative
  32. Negative
  33. 48
  34. 5
  35. Negative
  36. −9
  37. 28
  38. Positive
  39. −5
  40. Positive

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