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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 841 · 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. 1.5 + 7 =
  2. 2.Best estimate of 93 × 16? (a) 1800 (b) 180 (c) 18000
  3. 3.25% of ₹490 =
  4. 4.25 + ? = 100
  5. 5.2 + ? = 10
  6. 6.21 × 7 =
  7. 7.Half of 190 =
  8. 8.32 + ? = 100
  9. 9.A film starts at 4:25 and ends at 5:35. How many minutes long is the film?
  10. 10.25% of ₹90 =
  11. 11.11² =
  12. 12.Half of 88 =
  13. 13.Half of 66 =
  14. 14.28 + 27 =
  15. 15.What is the remainder when 92 is divided by 9?
  16. 16.111 − 79 =
  17. 17.7 + 8 =
  18. 18.16 + 18 =
  19. 19.You buy a kite for ₹83 and pay with a ₹100 note. How much change do you get, in rupees?
  20. 20.272 ÷ 8 =
  21. 21.5% of ₹800 =
  22. 22.12 × 8 =
  23. 23.624 ÷ 8 =
  24. 24.53 − 27 =
  25. 25.26 + 27 =
  26. 26.You buy a cricket ball for ₹171 and pay with a ₹500 note. How much change do you get, in rupees?
  27. 27.76 + 15 =
  28. 28.65 − 14 =
  29. 29.8 + 7 =
  30. 30.230 − 177 =
  31. 31.39 × 8 =
  32. 32.42 × 4 =
  33. 33.17 × 8 =
  34. 34.13² =
  35. 35.21² =
  36. 36.45 × 4 =
  37. 37.46 + ? = 100
  38. 38.216 ÷ 9 =
  39. 39.1002 − 984 =
  40. 40.50% of ₹340 =

Answer key

  1. 12
  2. 1800
  3. 122.5
  4. 75
  5. 8
  6. 147
  7. 95
  8. 68
  9. 70
  10. 22.5
  11. 121
  12. 44
  13. 33
  14. 55
  15. 2
  16. 32
  17. 15
  18. 34
  19. 17
  20. 34
  21. 40
  22. 96
  23. 78
  24. 26
  25. 53
  26. 329
  27. 91
  28. 51
  29. 15
  30. 53
  31. 312
  32. 168
  33. 136
  34. 169
  35. 441
  36. 180
  37. 54
  38. 24
  39. 18
  40. 170

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