← 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 607 · 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. 1.72 + 31 =
  2. 2.49 + 34 =
  3. 3.87 + 51 =
  4. 4.68 + 31 =
  5. 5.85 + 89 =
  6. 6.31 + 23 =
  7. 7.65 + 15 =
  8. 8.62 + 73 =
  9. 9.78 + 17 =
  10. 10.33 + 19 =
  11. 11.74 + 51 =
  12. 12.61 + 34 =
  13. 13.22 + 48 =
  14. 14.88 + 31 =
  15. 15.68 + 16 =
  16. 16.22 + 82 =
  17. 17.29 + 61 =
  18. 18.51 + 23 =
  19. 19.89 + 85 =
  20. 20.78 + 25 =
  21. 21.64 + 39 =
  22. 22.28 + 89 =
  23. 23.67 + 25 =
  24. 24.59 + 23 =
  25. 25.34 + 31 =
  26. 26.34 + 62 =
  27. 27.24 + 81 =
  28. 28.45 + 34 =
  29. 29.66 + 26 =
  30. 30.59 + 63 =
  31. 31.52 + 64 =
  32. 32.45 + 71 =
  33. 33.29 + 34 =
  34. 34.43 + 84 =
  35. 35.68 + 32 =
  36. 36.71 + 33 =
  37. 37.36 + 38 =
  38. 38.30 + 28 =
  39. 39.23 + 12 =
  40. 40.38 + 61 =

Answer key

  1. 103
  2. 83
  3. 138
  4. 99
  5. 174
  6. 54
  7. 80
  8. 135
  9. 95
  10. 52
  11. 125
  12. 95
  13. 70
  14. 119
  15. 84
  16. 104
  17. 90
  18. 74
  19. 174
  20. 103
  21. 103
  22. 117
  23. 92
  24. 82
  25. 65
  26. 96
  27. 105
  28. 79
  29. 92
  30. 122
  31. 116
  32. 116
  33. 63
  34. 127
  35. 100
  36. 104
  37. 74
  38. 58
  39. 35
  40. 99

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