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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 957 · 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. 1.17² =
  2. 2.104 ÷ 4 =
  3. 3.18² =
  4. 4.864 ÷ 9 =
  5. 5.27 + ? = 100
  6. 6.77 laddoos are packed in boxes of 9. How many laddoos are left over?
  7. 7.36 × 9 =
  8. 8.54 + ? = 100
  9. 9.47 laddoos are packed in boxes of 3. How many laddoos are left over?
  10. 10.Half of 186 =
  11. 11.280 ÷ 8 =
  12. 12.Best estimate of 34 × 96? (a) 3000 (b) 300 (c) 30000
  13. 13.67 − 31 =
  14. 14.324 ÷ 9 =
  15. 15.24 + ? = 100
  16. 16.10% of ₹610 =
  17. 17.68 + 51 =
  18. 18.19 + 9 =
  19. 19.6 + ? = 10
  20. 20.104 ÷ 8 =
  21. 21.50% of ₹440 =
  22. 22.29 × 7 =
  23. 23.287 ÷ 7 =
  24. 24.89 − 59 =
  25. 25.Double 87 =
  26. 26.8 + ? = 10
  27. 27.You buy a notebook for ₹43 and a pen for ₹17. You pay with a ₹100 note. How much change do you get, in rupees?
  28. 28.What is the remainder when 87 is divided by 6?
  29. 29.50% of ₹870 =
  30. 30.27 × 8 =
  31. 31.65 + ? = 100
  32. 32.192 ÷ 4 =
  33. 33.10 + 12 =
  34. 34.33 + ? = 100
  35. 35.You start your homework at 3:10 and finish at 5:20. How many minutes did you work?
  36. 36.80 − 12 =
  37. 37.32 + 51 =
  38. 38.356 ÷ 4 =
  39. 39.50% of ₹900 =
  40. 40.86 + ? = 100

Answer key

  1. 289
  2. 26
  3. 324
  4. 96
  5. 73
  6. 5
  7. 324
  8. 46
  9. 2
  10. 93
  11. 35
  12. 3000
  13. 36
  14. 36
  15. 76
  16. 61
  17. 119
  18. 28
  19. 4
  20. 13
  21. 220
  22. 203
  23. 41
  24. 30
  25. 174
  26. 2
  27. 40
  28. 3
  29. 435
  30. 216
  31. 35
  32. 48
  33. 22
  34. 67
  35. 130
  36. 68
  37. 83
  38. 89
  39. 450
  40. 14

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