← Add 2-digit numbers left to right lesson New set →

Mental Addition Worksheet for Class 2 and 3

Mental maths lesson 6: Add 2-digit numbers left to right · Set 40 · 40 questions
TalentJR

How to do it in your head (Tens first): Keep the first number as it is. Add the tens of the second number. Add the ones.

NameDateTime takenScore ___ / 40
  1. 1.83 + 22 =
  2. 2.42 + 39 =
  3. 3.84 + 51 =
  4. 4.70 + 57 =
  5. 5.24 + 32 =
  6. 6.88 + 65 =
  7. 7.58 + 24 =
  8. 8.78 + 41 =
  9. 9.86 + 25 =
  10. 10.24 + 22 =
  11. 11.50 + 14 =
  12. 12.68 + 41 =
  13. 13.85 + 66 =
  14. 14.56 + 27 =
  15. 15.36 + 28 =
  16. 16.60 + 68 =
  17. 17.33 + 14 =
  18. 18.66 + 42 =
  19. 19.61 + 78 =
  20. 20.23 + 15 =
  21. 21.29 + 83 =
  22. 22.55 + 84 =
  23. 23.86 + 89 =
  24. 24.82 + 68 =
  25. 25.25 + 31 =
  26. 26.62 + 88 =
  27. 27.38 + 58 =
  28. 28.38 + 76 =
  29. 29.61 + 72 =
  30. 30.85 + 71 =
  31. 31.62 + 17 =
  32. 32.39 + 21 =
  33. 33.75 + 82 =
  34. 34.81 + 38 =
  35. 35.81 + 14 =
  36. 36.79 + 43 =
  37. 37.51 + 19 =
  38. 38.58 + 23 =
  39. 39.71 + 22 =
  40. 40.51 + 29 =

Answer key

  1. 105
  2. 81
  3. 135
  4. 127
  5. 56
  6. 153
  7. 82
  8. 119
  9. 111
  10. 46
  11. 64
  12. 109
  13. 151
  14. 83
  15. 64
  16. 128
  17. 47
  18. 108
  19. 139
  20. 38
  21. 112
  22. 139
  23. 175
  24. 150
  25. 56
  26. 150
  27. 96
  28. 114
  29. 133
  30. 156
  31. 79
  32. 60
  33. 157
  34. 119
  35. 95
  36. 122
  37. 70
  38. 81
  39. 93
  40. 80

Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths