← 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 378 · 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. 1.30 + 63 =
  2. 2.87 + 18 =
  3. 3.83 + 88 =
  4. 4.74 + 31 =
  5. 5.70 + 34 =
  6. 6.51 + 61 =
  7. 7.88 + 12 =
  8. 8.75 + 65 =
  9. 9.33 + 18 =
  10. 10.71 + 69 =
  11. 11.33 + 65 =
  12. 12.38 + 31 =
  13. 13.74 + 85 =
  14. 14.78 + 36 =
  15. 15.28 + 52 =
  16. 16.62 + 26 =
  17. 17.86 + 87 =
  18. 18.32 + 51 =
  19. 19.75 + 74 =
  20. 20.80 + 14 =
  21. 21.70 + 63 =
  22. 22.25 + 16 =
  23. 23.35 + 71 =
  24. 24.71 + 41 =
  25. 25.48 + 21 =
  26. 26.78 + 24 =
  27. 27.82 + 61 =
  28. 28.53 + 36 =
  29. 29.25 + 52 =
  30. 30.44 + 18 =
  31. 31.26 + 43 =
  32. 32.37 + 89 =
  33. 33.89 + 21 =
  34. 34.24 + 61 =
  35. 35.29 + 19 =
  36. 36.33 + 32 =
  37. 37.78 + 59 =
  38. 38.60 + 38 =
  39. 39.87 + 42 =
  40. 40.25 + 51 =

Answer key

  1. 93
  2. 105
  3. 171
  4. 105
  5. 104
  6. 112
  7. 100
  8. 140
  9. 51
  10. 140
  11. 98
  12. 69
  13. 159
  14. 114
  15. 80
  16. 88
  17. 173
  18. 83
  19. 149
  20. 94
  21. 133
  22. 41
  23. 106
  24. 112
  25. 69
  26. 102
  27. 143
  28. 89
  29. 77
  30. 62
  31. 69
  32. 126
  33. 110
  34. 85
  35. 48
  36. 65
  37. 137
  38. 98
  39. 129
  40. 76

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