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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 640 · 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. 1.316 ÷ 4 =
  2. 2.8 + ? = 10
  3. 3.Double 98 =
  4. 4.5% of ₹390 =
  5. 5.6 + ? = 10
  6. 6.You buy a kite for ₹12 and a pen for ₹26. You pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.172 ÷ 4 =
  8. 8.Half of 116 =
  9. 9.40 − 9 =
  10. 10.67 − 56 =
  11. 11.21² =
  12. 12.301 − 279 =
  13. 13.27 + 26 =
  14. 14.507 − 476 =
  15. 15.You buy a kite for ₹27 and pay with a ₹100 note. How much change do you get, in rupees?
  16. 16.57 × 4 =
  17. 17.What is the remainder when 21 is divided by 4?
  18. 18.92 − 60 =
  19. 19.79 + 2 =
  20. 20.28 × 8 =
  21. 21.Double 44 =
  22. 22.Half of 94 =
  23. 23.92 laddoos are packed in boxes of 6. How many laddoos are left over?
  24. 24.5% of ₹880 =
  25. 25.Half of 126 =
  26. 26.28 + 31 =
  27. 27.43 + ? = 100
  28. 28.15 + 14 =
  29. 29.27² =
  30. 30.9 + ? = 10
  31. 31.You buy a notebook for ₹56 and pay with a ₹100 note. How much change do you get, in rupees?
  32. 32.19 + 20 =
  33. 33.264 ÷ 8 =
  34. 34.81 + 61 =
  35. 35.10% of ₹180 =
  36. 36.Half of 134 =
  37. 37.74 + ? = 100
  38. 38.54 × 6 =
  39. 39.2 + ? = 10
  40. 40.39 + 42 =

Answer key

  1. 79
  2. 2
  3. 196
  4. 19.5
  5. 4
  6. 62
  7. 43
  8. 58
  9. 31
  10. 11
  11. 441
  12. 22
  13. 53
  14. 31
  15. 73
  16. 228
  17. 1
  18. 32
  19. 81
  20. 224
  21. 88
  22. 47
  23. 2
  24. 44
  25. 63
  26. 59
  27. 57
  28. 29
  29. 729
  30. 1
  31. 44
  32. 39
  33. 33
  34. 142
  35. 18
  36. 67
  37. 26
  38. 324
  39. 8
  40. 81

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