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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 305 · 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. 1.34 × 8 =
  2. 2.217 ÷ 7 =
  3. 3.45 + 7 =
  4. 4.214 − 179 =
  5. 5.23 + ? = 100
  6. 6.45 + 6 =
  7. 7.124 laddoos are packed in boxes of 9. How many laddoos are left over?
  8. 8.61 × 6 =
  9. 9.47 − 9 =
  10. 10.15 + ? = 100
  11. 11.51 × 5 =
  12. 12.14 × 4 =
  13. 13.58 + 9 =
  14. 14.272 ÷ 8 =
  15. 15.Best estimate of 328 + 266? (a) 600 (b) 400 (c) 800
  16. 16.74 + 82 =
  17. 17.9 + ? = 10
  18. 18.93 − 19 =
  19. 19.Double 28 =
  20. 20.72 − 53 =
  21. 21.69 + 86 =
  22. 22.29 × 8 =
  23. 23.You start your homework at 6:40 and finish at 7:50. How many minutes did you work?
  24. 24.32 + 82 =
  25. 25.99 − 83 =
  26. 26.52 + 29 =
  27. 27.A train leaves at 7:30 and reaches the next city at 10:35. How many minutes is the journey?
  28. 28.46 laddoos are packed in boxes of 4. How many laddoos are left over?
  29. 29.51 + 52 =
  30. 30.24 laddoos are packed in boxes of 5. How many laddoos are left over?
  31. 31.23 laddoos are packed in boxes of 4. How many laddoos are left over?
  32. 32.63 − 48 =
  33. 33.71 children stand in rows of 7. How many full rows can they make?
  34. 34.Double 23 =
  35. 35.76 + 31 =
  36. 36.252 ÷ 7 =
  37. 37.19 + 20 =
  38. 38.75 + 6 =
  39. 39.You buy a bag of mangoes for ₹68 and pay with a ₹100 note. How much change do you get, in rupees?
  40. 40.56 + 8 =

Answer key

  1. 272
  2. 31
  3. 52
  4. 35
  5. 77
  6. 51
  7. 7
  8. 366
  9. 38
  10. 85
  11. 255
  12. 56
  13. 67
  14. 34
  15. 600
  16. 156
  17. 1
  18. 74
  19. 56
  20. 19
  21. 155
  22. 232
  23. 70
  24. 114
  25. 16
  26. 81
  27. 185
  28. 2
  29. 103
  30. 4
  31. 3
  32. 15
  33. 10
  34. 46
  35. 107
  36. 36
  37. 39
  38. 81
  39. 32
  40. 64

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