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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 508 · 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.Best estimate of 743 + 225? (a) 1100 (b) 900 (c) 700
  2. 2.1 + ? = 10
  3. 3.24² =
  4. 4.62 − 47 =
  5. 5.108 − 61 =
  6. 6.57 + 59 =
  7. 7.63 − 39 =
  8. 8.82 − 37 =
  9. 9.10% of ₹240 =
  10. 10.32 × 4 =
  11. 11.What is the remainder when 72 is divided by 5?
  12. 12.You buy a bag of mangoes for ₹99 and pay with a ₹100 note. How much change do you get, in rupees?
  13. 13.A train leaves at 3:25 and reaches the next city at 5:00. How many minutes is the journey?
  14. 14.5% of ₹750 =
  15. 15.223 − 177 =
  16. 16.10% of ₹350 =
  17. 17.5% of ₹420 =
  18. 18.14² =
  19. 19.20 + 22 =
  20. 20.65 + 9 =
  21. 21.16² =
  22. 22.26² =
  23. 23.168 ÷ 4 =
  24. 24.7 + ? = 10
  25. 25.88 ÷ 8 =
  26. 26.358 − 99 =
  27. 27.50% of ₹820 =
  28. 28.16 + 5 =
  29. 29.50 + 39 =
  30. 30.19 × 8 =
  31. 31.25% of ₹230 =
  32. 32.A film starts at 6:30 and ends at 9:25. How many minutes long is the film?
  33. 33.68 − 19 =
  34. 34.1025 − 987 =
  35. 35.183 ÷ 3 =
  36. 36.86 − 29 =
  37. 37.76 + 9 =
  38. 38.58 + 29 =
  39. 39.105 − 88 =
  40. 40.9 + ? = 10

Answer key

  1. 900
  2. 9
  3. 576
  4. 15
  5. 47
  6. 116
  7. 24
  8. 45
  9. 24
  10. 128
  11. 2
  12. 1
  13. 95
  14. 37.5
  15. 46
  16. 35
  17. 21
  18. 196
  19. 42
  20. 74
  21. 256
  22. 676
  23. 42
  24. 3
  25. 11
  26. 259
  27. 410
  28. 21
  29. 89
  30. 152
  31. 57.5
  32. 175
  33. 49
  34. 38
  35. 61
  36. 57
  37. 85
  38. 87
  39. 17
  40. 1

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