← 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 46 · 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. 1.29 + 49 =
  2. 2.25 + 48 =
  3. 3.48 + 39 =
  4. 4.29 + 42 =
  5. 5.26 + 85 =
  6. 6.56 + 16 =
  7. 7.24 + 66 =
  8. 8.38 + 86 =
  9. 9.21 + 15 =
  10. 10.73 + 65 =
  11. 11.41 + 35 =
  12. 12.59 + 82 =
  13. 13.55 + 31 =
  14. 14.21 + 84 =
  15. 15.55 + 26 =
  16. 16.84 + 71 =
  17. 17.64 + 12 =
  18. 18.35 + 22 =
  19. 19.54 + 83 =
  20. 20.54 + 54 =
  21. 21.72 + 58 =
  22. 22.53 + 47 =
  23. 23.22 + 54 =
  24. 24.75 + 84 =
  25. 25.29 + 63 =
  26. 26.88 + 38 =
  27. 27.46 + 42 =
  28. 28.84 + 37 =
  29. 29.37 + 33 =
  30. 30.35 + 51 =
  31. 31.81 + 24 =
  32. 32.72 + 28 =
  33. 33.32 + 21 =
  34. 34.89 + 38 =
  35. 35.57 + 23 =
  36. 36.73 + 69 =
  37. 37.70 + 45 =
  38. 38.68 + 33 =
  39. 39.68 + 17 =
  40. 40.35 + 37 =

Answer key

  1. 78
  2. 73
  3. 87
  4. 71
  5. 111
  6. 72
  7. 90
  8. 124
  9. 36
  10. 138
  11. 76
  12. 141
  13. 86
  14. 105
  15. 81
  16. 155
  17. 76
  18. 57
  19. 137
  20. 108
  21. 130
  22. 100
  23. 76
  24. 159
  25. 92
  26. 126
  27. 88
  28. 121
  29. 70
  30. 86
  31. 105
  32. 100
  33. 53
  34. 127
  35. 80
  36. 142
  37. 115
  38. 101
  39. 85
  40. 72

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