← 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 686 · 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. 1.84 + 26 =
  2. 2.39 + 29 =
  3. 3.55 + 17 =
  4. 4.54 + 56 =
  5. 5.32 + 81 =
  6. 6.72 + 65 =
  7. 7.35 + 37 =
  8. 8.88 + 79 =
  9. 9.49 + 69 =
  10. 10.60 + 64 =
  11. 11.42 + 35 =
  12. 12.64 + 79 =
  13. 13.72 + 33 =
  14. 14.54 + 35 =
  15. 15.88 + 46 =
  16. 16.36 + 87 =
  17. 17.54 + 57 =
  18. 18.49 + 87 =
  19. 19.24 + 74 =
  20. 20.25 + 74 =
  21. 21.36 + 86 =
  22. 22.42 + 21 =
  23. 23.45 + 29 =
  24. 24.68 + 33 =
  25. 25.36 + 83 =
  26. 26.49 + 21 =
  27. 27.42 + 87 =
  28. 28.21 + 18 =
  29. 29.37 + 23 =
  30. 30.35 + 77 =
  31. 31.72 + 38 =
  32. 32.43 + 33 =
  33. 33.51 + 23 =
  34. 34.70 + 31 =
  35. 35.72 + 88 =
  36. 36.36 + 51 =
  37. 37.53 + 74 =
  38. 38.56 + 84 =
  39. 39.41 + 76 =
  40. 40.29 + 45 =

Answer key

  1. 110
  2. 68
  3. 72
  4. 110
  5. 113
  6. 137
  7. 72
  8. 167
  9. 118
  10. 124
  11. 77
  12. 143
  13. 105
  14. 89
  15. 134
  16. 123
  17. 111
  18. 136
  19. 98
  20. 99
  21. 122
  22. 63
  23. 74
  24. 101
  25. 119
  26. 70
  27. 129
  28. 39
  29. 60
  30. 112
  31. 110
  32. 76
  33. 74
  34. 101
  35. 160
  36. 87
  37. 127
  38. 140
  39. 117
  40. 74

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