← 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 233 · 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. 1.49 + 41 =
  2. 2.42 + 36 =
  3. 3.33 + 78 =
  4. 4.31 + 53 =
  5. 5.29 + 57 =
  6. 6.52 + 31 =
  7. 7.69 + 47 =
  8. 8.23 + 22 =
  9. 9.30 + 71 =
  10. 10.80 + 22 =
  11. 11.85 + 61 =
  12. 12.31 + 28 =
  13. 13.40 + 34 =
  14. 14.49 + 46 =
  15. 15.59 + 12 =
  16. 16.29 + 64 =
  17. 17.48 + 77 =
  18. 18.49 + 73 =
  19. 19.85 + 43 =
  20. 20.55 + 25 =
  21. 21.71 + 34 =
  22. 22.33 + 34 =
  23. 23.66 + 62 =
  24. 24.46 + 69 =
  25. 25.22 + 81 =
  26. 26.35 + 87 =
  27. 27.32 + 12 =
  28. 28.89 + 62 =
  29. 29.30 + 38 =
  30. 30.43 + 81 =
  31. 31.36 + 17 =
  32. 32.88 + 47 =
  33. 33.39 + 79 =
  34. 34.88 + 54 =
  35. 35.40 + 18 =
  36. 36.46 + 27 =
  37. 37.36 + 27 =
  38. 38.37 + 67 =
  39. 39.57 + 79 =
  40. 40.64 + 77 =

Answer key

  1. 90
  2. 78
  3. 111
  4. 84
  5. 86
  6. 83
  7. 116
  8. 45
  9. 101
  10. 102
  11. 146
  12. 59
  13. 74
  14. 95
  15. 71
  16. 93
  17. 125
  18. 122
  19. 128
  20. 80
  21. 105
  22. 67
  23. 128
  24. 115
  25. 103
  26. 122
  27. 44
  28. 151
  29. 68
  30. 124
  31. 53
  32. 135
  33. 118
  34. 142
  35. 58
  36. 73
  37. 63
  38. 104
  39. 136
  40. 141

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