← 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 548 · 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 + 21 =
  2. 2.55 + 21 =
  3. 3.39 + 28 =
  4. 4.67 + 31 =
  5. 5.88 + 32 =
  6. 6.70 + 44 =
  7. 7.85 + 29 =
  8. 8.47 + 54 =
  9. 9.43 + 75 =
  10. 10.25 + 67 =
  11. 11.82 + 77 =
  12. 12.74 + 65 =
  13. 13.60 + 49 =
  14. 14.87 + 64 =
  15. 15.56 + 65 =
  16. 16.46 + 22 =
  17. 17.86 + 21 =
  18. 18.87 + 37 =
  19. 19.40 + 72 =
  20. 20.40 + 51 =
  21. 21.75 + 22 =
  22. 22.24 + 45 =
  23. 23.70 + 26 =
  24. 24.82 + 65 =
  25. 25.79 + 18 =
  26. 26.79 + 27 =
  27. 27.79 + 77 =
  28. 28.31 + 58 =
  29. 29.70 + 13 =
  30. 30.28 + 58 =
  31. 31.37 + 64 =
  32. 32.73 + 53 =
  33. 33.24 + 31 =
  34. 34.65 + 71 =
  35. 35.28 + 45 =
  36. 36.27 + 21 =
  37. 37.51 + 88 =
  38. 38.35 + 69 =
  39. 39.70 + 49 =
  40. 40.48 + 86 =

Answer key

  1. 51
  2. 76
  3. 67
  4. 98
  5. 120
  6. 114
  7. 114
  8. 101
  9. 118
  10. 92
  11. 159
  12. 139
  13. 109
  14. 151
  15. 121
  16. 68
  17. 107
  18. 124
  19. 112
  20. 91
  21. 97
  22. 69
  23. 96
  24. 147
  25. 97
  26. 106
  27. 156
  28. 89
  29. 83
  30. 86
  31. 101
  32. 126
  33. 55
  34. 136
  35. 73
  36. 48
  37. 139
  38. 104
  39. 119
  40. 134

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