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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 846 · 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.A cricket match starts at 3:55 and the first innings ends at 6:30. How many minutes did the innings last?
  2. 2.184 ÷ 8 =
  3. 3.21² =
  4. 4.13² =
  5. 5.17 + 19 =
  6. 6.719 − 99 =
  7. 7.22 × 5 =
  8. 8.24² =
  9. 9.81 + ? = 100
  10. 10.25 + 27 =
  11. 11.122 − 77 =
  12. 12.Half of 148 =
  13. 13.12 + 11 =
  14. 14.7 + 4 =
  15. 15.71 × 4 =
  16. 16.497 − 99 =
  17. 17.Double 75 =
  18. 18.14 + ? = 100
  19. 19.50% of ₹820 =
  20. 20.What is the remainder when 43 is divided by 5?
  21. 21.50% of ₹470 =
  22. 22.5 + 7 =
  23. 23.71 − 15 =
  24. 24.110 − 86 =
  25. 25.14 + 16 =
  26. 26.37 + 9 =
  27. 27.88 ÷ 4 =
  28. 28.You buy a cricket ball for ₹16 and pay with a ₹100 note. How much change do you get, in rupees?
  29. 29.Best estimate of 665 + 394? (a) 900 (b) 1100 (c) 1300
  30. 30.91 − 28 =
  31. 31.147 ÷ 7 =
  32. 32.54 ÷ 3 =
  33. 33.78 − 42 =
  34. 34.Best estimate of 365 + 739? (a) 900 (b) 1300 (c) 1100
  35. 35.77 + 4 =
  36. 36.83 − 29 =
  37. 37.22 + 23 =
  38. 38.124 ÷ 4 =
  39. 39.A train leaves at 1:30 and reaches the next city at 3:55. How many minutes is the journey?
  40. 40.Half of 152 =

Answer key

  1. 155
  2. 23
  3. 441
  4. 169
  5. 36
  6. 620
  7. 110
  8. 576
  9. 19
  10. 52
  11. 45
  12. 74
  13. 23
  14. 11
  15. 284
  16. 398
  17. 150
  18. 86
  19. 410
  20. 3
  21. 235
  22. 12
  23. 56
  24. 24
  25. 30
  26. 46
  27. 22
  28. 84
  29. 1100
  30. 63
  31. 21
  32. 18
  33. 36
  34. 1100
  35. 81
  36. 54
  37. 45
  38. 31
  39. 145
  40. 76

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