← 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 992 · 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. 1.41 + 13 =
  2. 2.47 + 62 =
  3. 3.68 + 18 =
  4. 4.35 + 52 =
  5. 5.59 + 26 =
  6. 6.54 + 31 =
  7. 7.81 + 17 =
  8. 8.40 + 82 =
  9. 9.50 + 39 =
  10. 10.65 + 56 =
  11. 11.45 + 39 =
  12. 12.62 + 36 =
  13. 13.74 + 36 =
  14. 14.86 + 16 =
  15. 15.39 + 31 =
  16. 16.81 + 24 =
  17. 17.48 + 46 =
  18. 18.51 + 66 =
  19. 19.70 + 27 =
  20. 20.40 + 15 =
  21. 21.74 + 25 =
  22. 22.38 + 83 =
  23. 23.45 + 36 =
  24. 24.40 + 31 =
  25. 25.51 + 75 =
  26. 26.50 + 21 =
  27. 27.45 + 35 =
  28. 28.87 + 57 =
  29. 29.53 + 62 =
  30. 30.88 + 68 =
  31. 31.52 + 79 =
  32. 32.71 + 63 =
  33. 33.72 + 84 =
  34. 34.26 + 25 =
  35. 35.44 + 23 =
  36. 36.70 + 28 =
  37. 37.64 + 56 =
  38. 38.68 + 15 =
  39. 39.71 + 19 =
  40. 40.48 + 18 =

Answer key

  1. 54
  2. 109
  3. 86
  4. 87
  5. 85
  6. 85
  7. 98
  8. 122
  9. 89
  10. 121
  11. 84
  12. 98
  13. 110
  14. 102
  15. 70
  16. 105
  17. 94
  18. 117
  19. 97
  20. 55
  21. 99
  22. 121
  23. 81
  24. 71
  25. 126
  26. 71
  27. 80
  28. 144
  29. 115
  30. 156
  31. 131
  32. 134
  33. 156
  34. 51
  35. 67
  36. 98
  37. 120
  38. 83
  39. 90
  40. 66

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