← 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 721 · 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. 1.56 + 56 =
  2. 2.79 + 47 =
  3. 3.46 + 37 =
  4. 4.32 + 77 =
  5. 5.54 + 35 =
  6. 6.54 + 33 =
  7. 7.37 + 62 =
  8. 8.31 + 13 =
  9. 9.32 + 23 =
  10. 10.25 + 57 =
  11. 11.80 + 26 =
  12. 12.21 + 81 =
  13. 13.48 + 14 =
  14. 14.57 + 48 =
  15. 15.51 + 44 =
  16. 16.27 + 52 =
  17. 17.86 + 51 =
  18. 18.79 + 75 =
  19. 19.35 + 21 =
  20. 20.62 + 17 =
  21. 21.49 + 27 =
  22. 22.44 + 44 =
  23. 23.59 + 77 =
  24. 24.77 + 88 =
  25. 25.27 + 83 =
  26. 26.73 + 55 =
  27. 27.37 + 58 =
  28. 28.76 + 46 =
  29. 29.22 + 14 =
  30. 30.82 + 48 =
  31. 31.30 + 82 =
  32. 32.60 + 24 =
  33. 33.24 + 84 =
  34. 34.43 + 21 =
  35. 35.75 + 31 =
  36. 36.34 + 24 =
  37. 37.26 + 52 =
  38. 38.59 + 73 =
  39. 39.40 + 46 =
  40. 40.88 + 44 =

Answer key

  1. 112
  2. 126
  3. 83
  4. 109
  5. 89
  6. 87
  7. 99
  8. 44
  9. 55
  10. 82
  11. 106
  12. 102
  13. 62
  14. 105
  15. 95
  16. 79
  17. 137
  18. 154
  19. 56
  20. 79
  21. 76
  22. 88
  23. 136
  24. 165
  25. 110
  26. 128
  27. 95
  28. 122
  29. 36
  30. 130
  31. 112
  32. 84
  33. 108
  34. 64
  35. 106
  36. 58
  37. 78
  38. 132
  39. 86
  40. 132

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