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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 901 · 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. 1.29² =
  2. 2.37 + 29 =
  3. 3.22 + 29 =
  4. 4.114 ÷ 3 =
  5. 5.75 × 4 =
  6. 6.288 ÷ 8 =
  7. 7.28 + 19 =
  8. 8.50% of ₹360 =
  9. 9.224 ÷ 8 =
  10. 10.1029 − 976 =
  11. 11.73 + 29 =
  12. 12.You buy a box of crayons for ₹20 and a pen for ₹26. You pay with a ₹100 note. How much change do you get, in rupees?
  13. 13.385 ÷ 7 =
  14. 14.22 + 23 =
  15. 15.56 × 4 =
  16. 16.88 ÷ 4 =
  17. 17.82 − 59 =
  18. 18.22 × 4 =
  19. 19.123 laddoos are packed in boxes of 9. How many laddoos are left over?
  20. 20.42 × 4 =
  21. 21.19 + 9 =
  22. 22.Double 24 =
  23. 23.29 + 30 =
  24. 24.71 − 37 =
  25. 25.506 − 494 =
  26. 26.50% of ₹700 =
  27. 27.1 + ? = 10
  28. 28.688 ÷ 8 =
  29. 29.99 − 15 =
  30. 30.19 × 9 =
  31. 31.17 × 4 =
  32. 32.312 ÷ 8 =
  33. 33.84 + 61 =
  34. 34.65 + ? = 100
  35. 35.728 ÷ 8 =
  36. 36.546 ÷ 7 =
  37. 37.29 + 8 =
  38. 38.68 × 4 =
  39. 39.80 − 43 =
  40. 40.37 + 49 =

Answer key

  1. 841
  2. 66
  3. 51
  4. 38
  5. 300
  6. 36
  7. 47
  8. 180
  9. 28
  10. 53
  11. 102
  12. 54
  13. 55
  14. 45
  15. 224
  16. 22
  17. 23
  18. 88
  19. 6
  20. 168
  21. 28
  22. 48
  23. 59
  24. 34
  25. 12
  26. 350
  27. 9
  28. 86
  29. 84
  30. 171
  31. 68
  32. 39
  33. 145
  34. 35
  35. 91
  36. 78
  37. 37
  38. 272
  39. 37
  40. 86

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