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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 561 · 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. 1.12 + 13 =
  2. 2.A train leaves at 2:50 and reaches the next city at 5:30. How many minutes is the journey?
  3. 3.Best estimate of 186 + 298? (a) 700 (b) 500 (c) 300
  4. 4.96 ÷ 8 =
  5. 5.Double 21 =
  6. 6.870 − 99 =
  7. 7.What is the remainder when 81 is divided by 7?
  8. 8.1025 − 993 =
  9. 9.Double 44 =
  10. 10.A train leaves at 4:15 and reaches the next city at 5:15. How many minutes is the journey?
  11. 11.65 − 19 =
  12. 12.65 − 33 =
  13. 13.36 + ? = 100
  14. 14.82 − 19 =
  15. 15.28 + 19 =
  16. 16.69 × 8 =
  17. 17.224 ÷ 4 =
  18. 18.745 + 99 =
  19. 19.34 + 62 =
  20. 20.13² =
  21. 21.214 − 196 =
  22. 22.Double 91 =
  23. 23.Best estimate of 783 + 676? (a) 1700 (b) 1500 (c) 1300
  24. 24.14 × 4 =
  25. 25.588 + 99 =
  26. 26.25% of ₹360 =
  27. 27.455 ÷ 7 =
  28. 28.33 × 8 =
  29. 29.46 + 8 =
  30. 30.30 + 17 =
  31. 31.65 + 6 =
  32. 32.25% of ₹500 =
  33. 33.10% of ₹880 =
  34. 34.420 ÷ 5 =
  35. 35.72 − 39 =
  36. 36.10 + 9 =
  37. 37.48 × 4 =
  38. 38.425 ÷ 5 =
  39. 39.18 + 29 =
  40. 40.130 ÷ 5 =

Answer key

  1. 25
  2. 160
  3. 500
  4. 12
  5. 42
  6. 771
  7. 4
  8. 32
  9. 88
  10. 60
  11. 46
  12. 32
  13. 64
  14. 63
  15. 47
  16. 552
  17. 56
  18. 844
  19. 96
  20. 169
  21. 18
  22. 182
  23. 1500
  24. 56
  25. 687
  26. 90
  27. 65
  28. 264
  29. 54
  30. 47
  31. 71
  32. 125
  33. 88
  34. 84
  35. 33
  36. 19
  37. 192
  38. 85
  39. 47
  40. 26

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