← 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 778 · 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. 1.44 + 89 =
  2. 2.41 + 38 =
  3. 3.22 + 41 =
  4. 4.23 + 43 =
  5. 5.89 + 74 =
  6. 6.82 + 29 =
  7. 7.81 + 51 =
  8. 8.55 + 41 =
  9. 9.75 + 54 =
  10. 10.45 + 24 =
  11. 11.62 + 14 =
  12. 12.50 + 12 =
  13. 13.31 + 31 =
  14. 14.33 + 85 =
  15. 15.64 + 48 =
  16. 16.25 + 19 =
  17. 17.45 + 61 =
  18. 18.48 + 26 =
  19. 19.35 + 31 =
  20. 20.52 + 76 =
  21. 21.33 + 51 =
  22. 22.55 + 57 =
  23. 23.48 + 16 =
  24. 24.53 + 36 =
  25. 25.43 + 81 =
  26. 26.25 + 29 =
  27. 27.57 + 61 =
  28. 28.21 + 13 =
  29. 29.71 + 22 =
  30. 30.45 + 64 =
  31. 31.32 + 31 =
  32. 32.74 + 33 =
  33. 33.83 + 83 =
  34. 34.32 + 38 =
  35. 35.62 + 25 =
  36. 36.68 + 36 =
  37. 37.39 + 46 =
  38. 38.89 + 71 =
  39. 39.26 + 87 =
  40. 40.51 + 77 =

Answer key

  1. 133
  2. 79
  3. 63
  4. 66
  5. 163
  6. 111
  7. 132
  8. 96
  9. 129
  10. 69
  11. 76
  12. 62
  13. 62
  14. 118
  15. 112
  16. 44
  17. 106
  18. 74
  19. 66
  20. 128
  21. 84
  22. 112
  23. 64
  24. 89
  25. 124
  26. 54
  27. 118
  28. 34
  29. 93
  30. 109
  31. 63
  32. 107
  33. 166
  34. 70
  35. 87
  36. 104
  37. 85
  38. 160
  39. 113
  40. 128

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