← 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 166 · 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. 1.83 + 24 =
  2. 2.54 + 51 =
  3. 3.73 + 45 =
  4. 4.66 + 73 =
  5. 5.56 + 77 =
  6. 6.37 + 45 =
  7. 7.62 + 21 =
  8. 8.79 + 46 =
  9. 9.86 + 71 =
  10. 10.55 + 74 =
  11. 11.78 + 74 =
  12. 12.65 + 21 =
  13. 13.38 + 44 =
  14. 14.36 + 71 =
  15. 15.81 + 22 =
  16. 16.50 + 48 =
  17. 17.51 + 31 =
  18. 18.22 + 19 =
  19. 19.22 + 48 =
  20. 20.33 + 17 =
  21. 21.36 + 51 =
  22. 22.36 + 26 =
  23. 23.64 + 61 =
  24. 24.88 + 62 =
  25. 25.60 + 29 =
  26. 26.25 + 19 =
  27. 27.86 + 84 =
  28. 28.57 + 32 =
  29. 29.30 + 87 =
  30. 30.80 + 18 =
  31. 31.52 + 57 =
  32. 32.62 + 81 =
  33. 33.54 + 28 =
  34. 34.58 + 21 =
  35. 35.35 + 81 =
  36. 36.87 + 42 =
  37. 37.45 + 89 =
  38. 38.77 + 43 =
  39. 39.61 + 31 =
  40. 40.72 + 33 =

Answer key

  1. 107
  2. 105
  3. 118
  4. 139
  5. 133
  6. 82
  7. 83
  8. 125
  9. 157
  10. 129
  11. 152
  12. 86
  13. 82
  14. 107
  15. 103
  16. 98
  17. 82
  18. 41
  19. 70
  20. 50
  21. 87
  22. 62
  23. 125
  24. 150
  25. 89
  26. 44
  27. 170
  28. 89
  29. 117
  30. 98
  31. 109
  32. 143
  33. 82
  34. 79
  35. 116
  36. 129
  37. 134
  38. 120
  39. 92
  40. 105

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