← 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 588 · 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. 1.53 + 48 =
  2. 2.58 + 32 =
  3. 3.70 + 34 =
  4. 4.42 + 66 =
  5. 5.27 + 29 =
  6. 6.75 + 89 =
  7. 7.34 + 21 =
  8. 8.87 + 89 =
  9. 9.80 + 18 =
  10. 10.32 + 68 =
  11. 11.40 + 59 =
  12. 12.46 + 31 =
  13. 13.79 + 45 =
  14. 14.53 + 19 =
  15. 15.39 + 28 =
  16. 16.36 + 53 =
  17. 17.81 + 81 =
  18. 18.33 + 27 =
  19. 19.50 + 32 =
  20. 20.26 + 15 =
  21. 21.77 + 21 =
  22. 22.66 + 59 =
  23. 23.22 + 31 =
  24. 24.31 + 36 =
  25. 25.39 + 51 =
  26. 26.63 + 42 =
  27. 27.30 + 32 =
  28. 28.54 + 82 =
  29. 29.51 + 49 =
  30. 30.88 + 47 =
  31. 31.36 + 24 =
  32. 32.77 + 38 =
  33. 33.32 + 36 =
  34. 34.31 + 28 =
  35. 35.66 + 31 =
  36. 36.72 + 89 =
  37. 37.77 + 14 =
  38. 38.31 + 47 =
  39. 39.48 + 71 =
  40. 40.43 + 63 =

Answer key

  1. 101
  2. 90
  3. 104
  4. 108
  5. 56
  6. 164
  7. 55
  8. 176
  9. 98
  10. 100
  11. 99
  12. 77
  13. 124
  14. 72
  15. 67
  16. 89
  17. 162
  18. 60
  19. 82
  20. 41
  21. 98
  22. 125
  23. 53
  24. 67
  25. 90
  26. 105
  27. 62
  28. 136
  29. 100
  30. 135
  31. 60
  32. 115
  33. 68
  34. 59
  35. 97
  36. 161
  37. 91
  38. 78
  39. 119
  40. 106

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