← 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 422 · 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. 1.52 + 27 =
  2. 2.48 + 16 =
  3. 3.72 + 78 =
  4. 4.67 + 77 =
  5. 5.36 + 89 =
  6. 6.47 + 54 =
  7. 7.38 + 37 =
  8. 8.84 + 45 =
  9. 9.71 + 27 =
  10. 10.54 + 71 =
  11. 11.47 + 41 =
  12. 12.42 + 22 =
  13. 13.59 + 79 =
  14. 14.29 + 35 =
  15. 15.40 + 61 =
  16. 16.39 + 43 =
  17. 17.59 + 23 =
  18. 18.25 + 54 =
  19. 19.86 + 27 =
  20. 20.69 + 81 =
  21. 21.55 + 23 =
  22. 22.21 + 16 =
  23. 23.53 + 25 =
  24. 24.55 + 26 =
  25. 25.28 + 25 =
  26. 26.43 + 46 =
  27. 27.21 + 54 =
  28. 28.57 + 74 =
  29. 29.48 + 26 =
  30. 30.56 + 73 =
  31. 31.50 + 18 =
  32. 32.26 + 55 =
  33. 33.31 + 12 =
  34. 34.43 + 18 =
  35. 35.78 + 62 =
  36. 36.29 + 76 =
  37. 37.59 + 57 =
  38. 38.29 + 64 =
  39. 39.55 + 12 =
  40. 40.51 + 49 =

Answer key

  1. 79
  2. 64
  3. 150
  4. 144
  5. 125
  6. 101
  7. 75
  8. 129
  9. 98
  10. 125
  11. 88
  12. 64
  13. 138
  14. 64
  15. 101
  16. 82
  17. 82
  18. 79
  19. 113
  20. 150
  21. 78
  22. 37
  23. 78
  24. 81
  25. 53
  26. 89
  27. 75
  28. 131
  29. 74
  30. 129
  31. 68
  32. 81
  33. 43
  34. 61
  35. 140
  36. 105
  37. 116
  38. 93
  39. 67
  40. 100

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