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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 849 · 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. 1.3 + ? = 10
  2. 2.Double 98 =
  3. 3.14² =
  4. 4.60 − 51 =
  5. 5.329 − 284 =
  6. 6.204 ÷ 4 =
  7. 7.65 − 31 =
  8. 8.A cricket match starts at 1:35 and the first innings ends at 2:10. How many minutes did the innings last?
  9. 9.208 + 99 =
  10. 10.89 + 33 =
  11. 11.Double 38 =
  12. 12.51 − 9 =
  13. 13.5 + 6 =
  14. 14.A train leaves at 3:30 and reaches the next city at 4:25. How many minutes is the journey?
  15. 15.You buy a cricket ball for ₹131 and pay with a ₹500 note. How much change do you get, in rupees?
  16. 16.Best estimate of 93 × 80? (a) 720 (b) 7200 (c) 72000
  17. 17.73 + ? = 100
  18. 18.77 − 42 =
  19. 19.60 + 32 =
  20. 20.Double 99 =
  21. 21.105 ÷ 3 =
  22. 22.68 + 5 =
  23. 23.A film starts at 1:45 and ends at 4:55. How many minutes long is the film?
  24. 24.18² =
  25. 25.52 − 33 =
  26. 26.312 ÷ 8 =
  27. 27.1030 − 976 =
  28. 28.16 × 8 =
  29. 29.What is the remainder when 17 is divided by 4?
  30. 30.20 + 19 =
  31. 31.2 + ? = 10
  32. 32.510 − 488 =
  33. 33.76 + 9 =
  34. 34.78 + 3 =
  35. 35.Double 67 =
  36. 36.152 ÷ 4 =
  37. 37.29² =
  38. 38.27 + 7 =
  39. 39.64 × 4 =
  40. 40.307 − 295 =

Answer key

  1. 7
  2. 196
  3. 196
  4. 9
  5. 45
  6. 51
  7. 34
  8. 35
  9. 307
  10. 122
  11. 76
  12. 42
  13. 11
  14. 55
  15. 369
  16. 7200
  17. 27
  18. 35
  19. 92
  20. 198
  21. 35
  22. 73
  23. 190
  24. 324
  25. 19
  26. 39
  27. 54
  28. 128
  29. 1
  30. 39
  31. 8
  32. 22
  33. 85
  34. 81
  35. 134
  36. 38
  37. 841
  38. 34
  39. 256
  40. 12

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