← 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 375 · 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 + 62 =
  2. 2.28 + 46 =
  3. 3.42 + 86 =
  4. 4.29 + 85 =
  5. 5.22 + 66 =
  6. 6.21 + 21 =
  7. 7.29 + 37 =
  8. 8.27 + 58 =
  9. 9.65 + 26 =
  10. 10.25 + 79 =
  11. 11.68 + 23 =
  12. 12.61 + 21 =
  13. 13.69 + 28 =
  14. 14.83 + 87 =
  15. 15.61 + 28 =
  16. 16.60 + 87 =
  17. 17.49 + 29 =
  18. 18.21 + 28 =
  19. 19.21 + 31 =
  20. 20.38 + 65 =
  21. 21.50 + 85 =
  22. 22.72 + 29 =
  23. 23.27 + 21 =
  24. 24.56 + 75 =
  25. 25.82 + 31 =
  26. 26.87 + 13 =
  27. 27.78 + 12 =
  28. 28.35 + 46 =
  29. 29.39 + 62 =
  30. 30.66 + 53 =
  31. 31.50 + 66 =
  32. 32.24 + 58 =
  33. 33.27 + 86 =
  34. 34.57 + 54 =
  35. 35.83 + 46 =
  36. 36.40 + 31 =
  37. 37.43 + 77 =
  38. 38.26 + 82 =
  39. 39.33 + 59 =
  40. 40.43 + 52 =

Answer key

  1. 100
  2. 74
  3. 128
  4. 114
  5. 88
  6. 42
  7. 66
  8. 85
  9. 91
  10. 104
  11. 91
  12. 82
  13. 97
  14. 170
  15. 89
  16. 147
  17. 78
  18. 49
  19. 52
  20. 103
  21. 135
  22. 101
  23. 48
  24. 131
  25. 113
  26. 100
  27. 90
  28. 81
  29. 101
  30. 119
  31. 116
  32. 82
  33. 113
  34. 111
  35. 129
  36. 71
  37. 120
  38. 108
  39. 92
  40. 95

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