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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 556 · 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.You buy a cricket ball for ₹77 and pay with a ₹100 note. How much change do you get, in rupees?
  2. 2.667 + 99 =
  3. 3.24 + 25 =
  4. 4.24² =
  5. 5.1004 − 975 =
  6. 6.133 ÷ 7 =
  7. 7.152 ÷ 8 =
  8. 8.25% of ₹440 =
  9. 9.59 − 33 =
  10. 10.You buy a kite for ₹40 and a pen for ₹43. You pay with a ₹100 note. How much change do you get, in rupees?
  11. 11.76 × 8 =
  12. 12.Best estimate of 776 + 448? (a) 1200 (b) 1400 (c) 1000
  13. 13.505 − 476 =
  14. 14.55 + ? = 100
  15. 15.26 + 28 =
  16. 16.26² =
  17. 17.92 ÷ 4 =
  18. 18.75 + 8 =
  19. 19.632 ÷ 8 =
  20. 20.17² =
  21. 21.85 − 19 =
  22. 22.You buy a pencil box for ₹22 and a pen for ₹11. You pay with a ₹100 note. How much change do you get, in rupees?
  23. 23.10% of ₹460 =
  24. 24.You buy a notebook for ₹59 and pay with a ₹100 note. How much change do you get, in rupees?
  25. 25.248 ÷ 8 =
  26. 26.85 + ? = 100
  27. 27.106 − 75 =
  28. 28.296 ÷ 4 =
  29. 29.126 ÷ 9 =
  30. 30.41 × 4 =
  31. 31.19 × 8 =
  32. 32.Double 99 =
  33. 33.70 + 87 =
  34. 34.Double 38 =
  35. 35.29 + ? = 100
  36. 36.67 + ? = 100
  37. 37.Double 73 =
  38. 38.39 + 3 =
  39. 39.81 × 4 =
  40. 40.231 ÷ 7 =

Answer key

  1. 23
  2. 766
  3. 49
  4. 576
  5. 29
  6. 19
  7. 19
  8. 110
  9. 26
  10. 17
  11. 608
  12. 1200
  13. 29
  14. 45
  15. 54
  16. 676
  17. 23
  18. 83
  19. 79
  20. 289
  21. 66
  22. 67
  23. 46
  24. 41
  25. 31
  26. 15
  27. 31
  28. 74
  29. 14
  30. 164
  31. 152
  32. 198
  33. 157
  34. 76
  35. 71
  36. 33
  37. 146
  38. 42
  39. 324
  40. 33

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