← 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 135 · 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. 1.78 + 84 =
  2. 2.55 + 28 =
  3. 3.50 + 12 =
  4. 4.66 + 65 =
  5. 5.32 + 42 =
  6. 6.25 + 75 =
  7. 7.51 + 39 =
  8. 8.45 + 22 =
  9. 9.53 + 82 =
  10. 10.48 + 72 =
  11. 11.28 + 71 =
  12. 12.66 + 56 =
  13. 13.27 + 12 =
  14. 14.75 + 65 =
  15. 15.56 + 66 =
  16. 16.78 + 46 =
  17. 17.34 + 31 =
  18. 18.22 + 51 =
  19. 19.74 + 69 =
  20. 20.37 + 63 =
  21. 21.77 + 29 =
  22. 22.59 + 71 =
  23. 23.44 + 31 =
  24. 24.40 + 75 =
  25. 25.69 + 71 =
  26. 26.46 + 78 =
  27. 27.46 + 47 =
  28. 28.83 + 32 =
  29. 29.60 + 62 =
  30. 30.74 + 87 =
  31. 31.59 + 31 =
  32. 32.65 + 72 =
  33. 33.45 + 76 =
  34. 34.89 + 41 =
  35. 35.59 + 74 =
  36. 36.75 + 38 =
  37. 37.26 + 32 =
  38. 38.81 + 33 =
  39. 39.46 + 27 =
  40. 40.24 + 26 =

Answer key

  1. 162
  2. 83
  3. 62
  4. 131
  5. 74
  6. 100
  7. 90
  8. 67
  9. 135
  10. 120
  11. 99
  12. 122
  13. 39
  14. 140
  15. 122
  16. 124
  17. 65
  18. 73
  19. 143
  20. 100
  21. 106
  22. 130
  23. 75
  24. 115
  25. 140
  26. 124
  27. 93
  28. 115
  29. 122
  30. 161
  31. 90
  32. 137
  33. 121
  34. 130
  35. 133
  36. 113
  37. 58
  38. 114
  39. 73
  40. 50

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