← 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 24 · 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. 1.82 + 12 =
  2. 2.72 + 45 =
  3. 3.31 + 77 =
  4. 4.32 + 19 =
  5. 5.32 + 31 =
  6. 6.52 + 23 =
  7. 7.58 + 21 =
  8. 8.59 + 53 =
  9. 9.58 + 29 =
  10. 10.57 + 48 =
  11. 11.29 + 83 =
  12. 12.56 + 52 =
  13. 13.68 + 15 =
  14. 14.61 + 47 =
  15. 15.72 + 39 =
  16. 16.58 + 78 =
  17. 17.38 + 34 =
  18. 18.46 + 32 =
  19. 19.25 + 61 =
  20. 20.39 + 28 =
  21. 21.28 + 15 =
  22. 22.45 + 36 =
  23. 23.42 + 51 =
  24. 24.80 + 19 =
  25. 25.27 + 64 =
  26. 26.33 + 17 =
  27. 27.67 + 84 =
  28. 28.35 + 26 =
  29. 29.60 + 19 =
  30. 30.64 + 57 =
  31. 31.36 + 37 =
  32. 32.40 + 88 =
  33. 33.53 + 84 =
  34. 34.70 + 47 =
  35. 35.24 + 83 =
  36. 36.39 + 16 =
  37. 37.86 + 42 =
  38. 38.71 + 71 =
  39. 39.75 + 15 =
  40. 40.29 + 35 =

Answer key

  1. 94
  2. 117
  3. 108
  4. 51
  5. 63
  6. 75
  7. 79
  8. 112
  9. 87
  10. 105
  11. 112
  12. 108
  13. 83
  14. 108
  15. 111
  16. 136
  17. 72
  18. 78
  19. 86
  20. 67
  21. 43
  22. 81
  23. 93
  24. 99
  25. 91
  26. 50
  27. 151
  28. 61
  29. 79
  30. 121
  31. 73
  32. 128
  33. 137
  34. 117
  35. 107
  36. 55
  37. 128
  38. 142
  39. 90
  40. 64

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