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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 630 · 40 questions
TalentJR

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

NameDateTime takenScore ___ / 40
  1. 1.96 − 24 =
  2. 2.28 − 19 =
  3. 3.144 ÷ 8 =
  4. 4.A train leaves at 4:35 and reaches the next city at 6:50. How many minutes is the journey?
  5. 5.44 + 29 =
  6. 6.39 × 4 =
  7. 7.21 + ? = 100
  8. 8.35 + 7 =
  9. 9.Best estimate of 18 × 51? (a) 1000 (b) 10000 (c) 100
  10. 10.1009 − 994 =
  11. 11.15 + ? = 100
  12. 12.228 ÷ 6 =
  13. 13.18² =
  14. 14.102 − 89 =
  15. 15.83 − 57 =
  16. 16.You buy a pencil box for ₹362 and pay with a ₹500 note. How much change do you get, in rupees?
  17. 17.12 + 14 =
  18. 18.96 − 29 =
  19. 19.64 ÷ 4 =
  20. 20.5% of ₹40 =
  21. 21.30 × 8 =
  22. 22.68 + 3 =
  23. 23.24 children stand in rows of 5. How many full rows can they make?
  24. 24.130 − 76 =
  25. 25.11 + 10 =
  26. 26.You buy a cricket ball for ₹210 and pay with a ₹500 note. How much change do you get, in rupees?
  27. 27.17² =
  28. 28.65 + 7 =
  29. 29.22 + 9 =
  30. 30.Double 88 =
  31. 31.What is the remainder when 23 is divided by 5?
  32. 32.Best estimate of 320 + 517? (a) 800 (b) 600 (c) 1000
  33. 33.69 + 29 =
  34. 34.336 ÷ 8 =
  35. 35.25² =
  36. 36.69 × 8 =
  37. 37.28 + 6 =
  38. 38.103 − 65 =
  39. 39.50% of ₹580 =
  40. 40.59 + 6 =

Answer key

  1. 72
  2. 9
  3. 18
  4. 135
  5. 73
  6. 156
  7. 79
  8. 42
  9. 1000
  10. 15
  11. 85
  12. 38
  13. 324
  14. 13
  15. 26
  16. 138
  17. 26
  18. 67
  19. 16
  20. 2
  21. 240
  22. 71
  23. 4
  24. 54
  25. 21
  26. 290
  27. 289
  28. 72
  29. 31
  30. 176
  31. 3
  32. 800
  33. 98
  34. 42
  35. 625
  36. 552
  37. 34
  38. 38
  39. 290
  40. 65

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