← 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 333 · 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. 1.68 + 87 =
  2. 2.34 + 73 =
  3. 3.84 + 29 =
  4. 4.48 + 13 =
  5. 5.51 + 12 =
  6. 6.84 + 44 =
  7. 7.74 + 28 =
  8. 8.21 + 76 =
  9. 9.55 + 48 =
  10. 10.75 + 29 =
  11. 11.64 + 32 =
  12. 12.69 + 18 =
  13. 13.77 + 64 =
  14. 14.79 + 14 =
  15. 15.87 + 84 =
  16. 16.77 + 75 =
  17. 17.71 + 25 =
  18. 18.34 + 52 =
  19. 19.43 + 81 =
  20. 20.40 + 31 =
  21. 21.65 + 82 =
  22. 22.82 + 14 =
  23. 23.57 + 69 =
  24. 24.36 + 76 =
  25. 25.89 + 54 =
  26. 26.25 + 81 =
  27. 27.81 + 15 =
  28. 28.71 + 57 =
  29. 29.82 + 72 =
  30. 30.60 + 43 =
  31. 31.74 + 32 =
  32. 32.77 + 54 =
  33. 33.38 + 24 =
  34. 34.43 + 78 =
  35. 35.87 + 23 =
  36. 36.30 + 74 =
  37. 37.35 + 54 =
  38. 38.64 + 25 =
  39. 39.88 + 31 =
  40. 40.50 + 87 =

Answer key

  1. 155
  2. 107
  3. 113
  4. 61
  5. 63
  6. 128
  7. 102
  8. 97
  9. 103
  10. 104
  11. 96
  12. 87
  13. 141
  14. 93
  15. 171
  16. 152
  17. 96
  18. 86
  19. 124
  20. 71
  21. 147
  22. 96
  23. 126
  24. 112
  25. 143
  26. 106
  27. 96
  28. 128
  29. 154
  30. 103
  31. 106
  32. 131
  33. 62
  34. 121
  35. 110
  36. 104
  37. 89
  38. 89
  39. 119
  40. 137

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