← 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 505 · 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. 1.25 + 38 =
  2. 2.43 + 67 =
  3. 3.71 + 39 =
  4. 4.40 + 81 =
  5. 5.85 + 47 =
  6. 6.82 + 25 =
  7. 7.76 + 41 =
  8. 8.66 + 57 =
  9. 9.89 + 72 =
  10. 10.59 + 58 =
  11. 11.66 + 46 =
  12. 12.43 + 86 =
  13. 13.44 + 51 =
  14. 14.60 + 88 =
  15. 15.26 + 33 =
  16. 16.73 + 61 =
  17. 17.51 + 26 =
  18. 18.22 + 89 =
  19. 19.67 + 87 =
  20. 20.31 + 12 =
  21. 21.21 + 47 =
  22. 22.35 + 16 =
  23. 23.29 + 61 =
  24. 24.53 + 88 =
  25. 25.49 + 73 =
  26. 26.80 + 12 =
  27. 27.54 + 18 =
  28. 28.65 + 21 =
  29. 29.59 + 73 =
  30. 30.48 + 89 =
  31. 31.28 + 43 =
  32. 32.50 + 71 =
  33. 33.63 + 68 =
  34. 34.81 + 31 =
  35. 35.36 + 81 =
  36. 36.40 + 74 =
  37. 37.26 + 54 =
  38. 38.60 + 82 =
  39. 39.77 + 71 =
  40. 40.83 + 16 =

Answer key

  1. 63
  2. 110
  3. 110
  4. 121
  5. 132
  6. 107
  7. 117
  8. 123
  9. 161
  10. 117
  11. 112
  12. 129
  13. 95
  14. 148
  15. 59
  16. 134
  17. 77
  18. 111
  19. 154
  20. 43
  21. 68
  22. 51
  23. 90
  24. 141
  25. 122
  26. 92
  27. 72
  28. 86
  29. 132
  30. 137
  31. 71
  32. 121
  33. 131
  34. 112
  35. 117
  36. 114
  37. 80
  38. 142
  39. 148
  40. 99

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