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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 205 · 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. 1.209 − 182 =
  2. 2.69 + ? = 100
  3. 3.6 + ? = 10
  4. 4.Best estimate of 26 × 14? (a) 3000 (b) 300 (c) 30
  5. 5.Half of 164 =
  6. 6.11² =
  7. 7.63 + 62 =
  8. 8.7 + ? = 10
  9. 9.98 − 41 =
  10. 10.44 × 7 =
  11. 11.18 + 20 =
  12. 12.148 ÷ 4 =
  13. 13.77 laddoos are packed in boxes of 8. How many laddoos are left over?
  14. 14.A film starts at 8:05 and ends at 8:45. How many minutes long is the film?
  15. 15.A train leaves at 7:15 and reaches the next city at 8:40. How many minutes is the journey?
  16. 16.61 laddoos are packed in boxes of 6. How many laddoos are left over?
  17. 17.Double 52 =
  18. 18.44 + 9 =
  19. 19.60 + 9 =
  20. 20.Best estimate of 38 × 14? (a) 4000 (b) 400 (c) 40
  21. 21.What is the remainder when 44 is divided by 3?
  22. 22.36 + 8 =
  23. 23.Best estimate of 31 × 69? (a) 21000 (b) 2100 (c) 210
  24. 24.You buy a pencil box for ₹48 and pay with a ₹100 note. How much change do you get, in rupees?
  25. 25.Half of 196 =
  26. 26.84 − 21 =
  27. 27.213 − 178 =
  28. 28.A film starts at 6:05 and ends at 6:55. How many minutes long is the film?
  29. 29.50% of ₹110 =
  30. 30.You buy a bag of mangoes for ₹64 and pay with a ₹100 note. How much change do you get, in rupees?
  31. 31.30 + 36 =
  32. 32.63 + 29 =
  33. 33.81 × 8 =
  34. 34.88 + 8 =
  35. 35.You buy a water bottle for ₹12 and a pen for ₹31. You pay with a ₹100 note. How much change do you get, in rupees?
  36. 36.98 − 76 =
  37. 37.You start your homework at 5:10 and finish at 6:45. How many minutes did you work?
  38. 38.28 × 8 =
  39. 39.You buy a water bottle for ₹429 and pay with a ₹500 note. How much change do you get, in rupees?
  40. 40.5% of ₹400 =

Answer key

  1. 27
  2. 31
  3. 4
  4. 300
  5. 82
  6. 121
  7. 125
  8. 3
  9. 57
  10. 308
  11. 38
  12. 37
  13. 5
  14. 40
  15. 85
  16. 1
  17. 104
  18. 53
  19. 69
  20. 400
  21. 2
  22. 44
  23. 2100
  24. 52
  25. 98
  26. 63
  27. 35
  28. 50
  29. 55
  30. 36
  31. 66
  32. 92
  33. 648
  34. 96
  35. 57
  36. 22
  37. 95
  38. 224
  39. 71
  40. 20

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