← 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 480 · 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. 1.80 + 77 =
  2. 2.32 + 46 =
  3. 3.83 + 25 =
  4. 4.50 + 46 =
  5. 5.82 + 61 =
  6. 6.29 + 45 =
  7. 7.86 + 88 =
  8. 8.30 + 18 =
  9. 9.27 + 63 =
  10. 10.86 + 13 =
  11. 11.42 + 59 =
  12. 12.22 + 15 =
  13. 13.31 + 88 =
  14. 14.22 + 84 =
  15. 15.48 + 64 =
  16. 16.62 + 68 =
  17. 17.81 + 21 =
  18. 18.23 + 74 =
  19. 19.52 + 38 =
  20. 20.25 + 45 =
  21. 21.27 + 22 =
  22. 22.66 + 13 =
  23. 23.59 + 83 =
  24. 24.84 + 63 =
  25. 25.86 + 25 =
  26. 26.45 + 42 =
  27. 27.65 + 71 =
  28. 28.23 + 17 =
  29. 29.23 + 21 =
  30. 30.33 + 53 =
  31. 31.53 + 33 =
  32. 32.55 + 87 =
  33. 33.31 + 12 =
  34. 34.29 + 77 =
  35. 35.55 + 42 =
  36. 36.65 + 47 =
  37. 37.84 + 71 =
  38. 38.62 + 78 =
  39. 39.43 + 72 =
  40. 40.33 + 79 =

Answer key

  1. 157
  2. 78
  3. 108
  4. 96
  5. 143
  6. 74
  7. 174
  8. 48
  9. 90
  10. 99
  11. 101
  12. 37
  13. 119
  14. 106
  15. 112
  16. 130
  17. 102
  18. 97
  19. 90
  20. 70
  21. 49
  22. 79
  23. 142
  24. 147
  25. 111
  26. 87
  27. 136
  28. 40
  29. 44
  30. 86
  31. 86
  32. 142
  33. 43
  34. 106
  35. 97
  36. 112
  37. 155
  38. 140
  39. 115
  40. 112

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