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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 959 · 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. 1.49 laddoos are packed in boxes of 4. How many laddoos are left over?
  2. 2.53 × 3 =
  3. 3.98 − 21 =
  4. 4.50% of ₹170 =
  5. 5.111 children stand in rows of 7. How many full rows can they make?
  6. 6.22 + 24 =
  7. 7.Double 91 =
  8. 8.Double 53 =
  9. 9.18² =
  10. 10.13 + 15 =
  11. 11.89 × 8 =
  12. 12.96 − 77 =
  13. 13.62 × 3 =
  14. 14.546 ÷ 6 =
  15. 15.30 + 29 =
  16. 16.228 ÷ 4 =
  17. 17.19 × 4 =
  18. 18.102 − 29 =
  19. 19.65 + 6 =
  20. 20.Best estimate of 58 × 38? (a) 240 (b) 2400 (c) 24000
  21. 21.70 + 29 =
  22. 22.38 + 3 =
  23. 23.35 × 8 =
  24. 24.75 + 6 =
  25. 25.57 ÷ 3 =
  26. 26.80 ÷ 4 =
  27. 27.Best estimate of 812 + 561? (a) 1200 (b) 1600 (c) 1400
  28. 28.15² =
  29. 29.60 − 17 =
  30. 30.10% of ₹320 =
  31. 31.32 × 4 =
  32. 32.6 + 8 =
  33. 33.138 ÷ 6 =
  34. 34.75 + ? = 100
  35. 35.86 + ? = 100
  36. 36.Double 55 =
  37. 37.You buy a notebook for ₹46 and pay with a ₹100 note. How much change do you get, in rupees?
  38. 38.28 + 51 =
  39. 39.36 × 4 =
  40. 40.75 × 8 =

Answer key

  1. 1
  2. 159
  3. 77
  4. 85
  5. 15
  6. 46
  7. 182
  8. 106
  9. 324
  10. 28
  11. 712
  12. 19
  13. 186
  14. 91
  15. 59
  16. 57
  17. 76
  18. 73
  19. 71
  20. 2400
  21. 99
  22. 41
  23. 280
  24. 81
  25. 19
  26. 20
  27. 1400
  28. 225
  29. 43
  30. 32
  31. 128
  32. 14
  33. 23
  34. 25
  35. 14
  36. 110
  37. 54
  38. 79
  39. 144
  40. 600

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