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Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 971 · 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. 1.7 + ? = 10
  2. 2.Double 44 =
  3. 3.Half of 148 =
  4. 4.49 laddoos are packed in boxes of 4. How many laddoos are left over?
  5. 5.12 + 14 =
  6. 6.You buy a bag of mangoes for ₹99 and pay with a ₹100 note. How much change do you get, in rupees?
  7. 7.32 + ? = 100
  8. 8.189 ÷ 3 =
  9. 9.120 ÷ 8 =
  10. 10.You start your homework at 5:20 and finish at 7:10. How many minutes did you work?
  11. 11.26 × 8 =
  12. 12.102 − 59 =
  13. 13.53 − 31 =
  14. 14.15 + 29 =
  15. 15.200 ÷ 8 =
  16. 16.24 + 19 =
  17. 17.Best estimate of 66 × 47? (a) 35000 (b) 3500 (c) 350
  18. 18.10% of ₹820 =
  19. 19.33 + 9 =
  20. 20.72 − 13 =
  21. 21.25% of ₹720 =
  22. 22.243 ÷ 3 =
  23. 23.27 + 28 =
  24. 24.Best estimate of 26 × 86? (a) 2700 (b) 270 (c) 27000
  25. 25.90 − 48 =
  26. 26.24² =
  27. 27.27 × 4 =
  28. 28.39 × 5 =
  29. 29.76 + 9 =
  30. 30.75 − 31 =
  31. 31.Best estimate of 639 + 271? (a) 700 (b) 1100 (c) 900
  32. 32.78 ÷ 3 =
  33. 33.188 ÷ 4 =
  34. 34.743 − 99 =
  35. 35.73 children stand in rows of 7. How many full rows can they make?
  36. 36.36 + 5 =
  37. 37.86 + 19 =
  38. 38.73 + 12 =
  39. 39.80 + ? = 100
  40. 40.Double 88 =

Answer key

  1. 3
  2. 88
  3. 74
  4. 1
  5. 26
  6. 1
  7. 68
  8. 63
  9. 15
  10. 110
  11. 208
  12. 43
  13. 22
  14. 44
  15. 25
  16. 43
  17. 3500
  18. 82
  19. 42
  20. 59
  21. 180
  22. 81
  23. 55
  24. 2700
  25. 42
  26. 576
  27. 108
  28. 195
  29. 85
  30. 44
  31. 900
  32. 26
  33. 47
  34. 644
  35. 10
  36. 41
  37. 105
  38. 85
  39. 20
  40. 176

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