← 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 12 · 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. 1.82 + 89 =
  2. 2.27 + 76 =
  3. 3.62 + 86 =
  4. 4.37 + 87 =
  5. 5.65 + 56 =
  6. 6.55 + 23 =
  7. 7.40 + 81 =
  8. 8.40 + 89 =
  9. 9.78 + 41 =
  10. 10.79 + 48 =
  11. 11.22 + 38 =
  12. 12.89 + 13 =
  13. 13.80 + 54 =
  14. 14.22 + 23 =
  15. 15.39 + 31 =
  16. 16.35 + 19 =
  17. 17.67 + 31 =
  18. 18.81 + 86 =
  19. 19.21 + 79 =
  20. 20.26 + 83 =
  21. 21.38 + 84 =
  22. 22.25 + 79 =
  23. 23.61 + 18 =
  24. 24.56 + 38 =
  25. 25.75 + 73 =
  26. 26.26 + 22 =
  27. 27.41 + 52 =
  28. 28.50 + 28 =
  29. 29.32 + 88 =
  30. 30.83 + 51 =
  31. 31.54 + 83 =
  32. 32.21 + 26 =
  33. 33.35 + 47 =
  34. 34.33 + 38 =
  35. 35.61 + 82 =
  36. 36.42 + 61 =
  37. 37.81 + 65 =
  38. 38.85 + 64 =
  39. 39.21 + 54 =
  40. 40.85 + 13 =

Answer key

  1. 171
  2. 103
  3. 148
  4. 124
  5. 121
  6. 78
  7. 121
  8. 129
  9. 119
  10. 127
  11. 60
  12. 102
  13. 134
  14. 45
  15. 70
  16. 54
  17. 98
  18. 167
  19. 100
  20. 109
  21. 122
  22. 104
  23. 79
  24. 94
  25. 148
  26. 48
  27. 93
  28. 78
  29. 120
  30. 134
  31. 137
  32. 47
  33. 82
  34. 71
  35. 143
  36. 103
  37. 146
  38. 149
  39. 75
  40. 98

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