← 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 298 · 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. 1.38 + 46 =
  2. 2.42 + 41 =
  3. 3.60 + 61 =
  4. 4.51 + 12 =
  5. 5.25 + 39 =
  6. 6.89 + 72 =
  7. 7.36 + 46 =
  8. 8.31 + 57 =
  9. 9.50 + 31 =
  10. 10.39 + 27 =
  11. 11.34 + 75 =
  12. 12.44 + 57 =
  13. 13.35 + 16 =
  14. 14.29 + 82 =
  15. 15.66 + 13 =
  16. 16.39 + 23 =
  17. 17.84 + 33 =
  18. 18.26 + 38 =
  19. 19.72 + 67 =
  20. 20.45 + 45 =
  21. 21.65 + 13 =
  22. 22.73 + 82 =
  23. 23.65 + 48 =
  24. 24.47 + 44 =
  25. 25.70 + 28 =
  26. 26.77 + 63 =
  27. 27.78 + 24 =
  28. 28.37 + 38 =
  29. 29.48 + 21 =
  30. 30.69 + 61 =
  31. 31.81 + 41 =
  32. 32.38 + 33 =
  33. 33.77 + 22 =
  34. 34.46 + 35 =
  35. 35.33 + 21 =
  36. 36.73 + 77 =
  37. 37.89 + 37 =
  38. 38.74 + 39 =
  39. 39.53 + 31 =
  40. 40.43 + 81 =

Answer key

  1. 84
  2. 83
  3. 121
  4. 63
  5. 64
  6. 161
  7. 82
  8. 88
  9. 81
  10. 66
  11. 109
  12. 101
  13. 51
  14. 111
  15. 79
  16. 62
  17. 117
  18. 64
  19. 139
  20. 90
  21. 78
  22. 155
  23. 113
  24. 91
  25. 98
  26. 140
  27. 102
  28. 75
  29. 69
  30. 130
  31. 122
  32. 71
  33. 99
  34. 81
  35. 54
  36. 150
  37. 126
  38. 113
  39. 84
  40. 124

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