← 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 142 · 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. 1.43 + 21 =
  2. 2.41 + 79 =
  3. 3.26 + 48 =
  4. 4.49 + 63 =
  5. 5.35 + 52 =
  6. 6.57 + 54 =
  7. 7.43 + 64 =
  8. 8.89 + 64 =
  9. 9.67 + 69 =
  10. 10.64 + 47 =
  11. 11.79 + 58 =
  12. 12.86 + 36 =
  13. 13.40 + 43 =
  14. 14.77 + 43 =
  15. 15.35 + 45 =
  16. 16.62 + 32 =
  17. 17.25 + 41 =
  18. 18.41 + 58 =
  19. 19.31 + 51 =
  20. 20.57 + 13 =
  21. 21.33 + 51 =
  22. 22.69 + 62 =
  23. 23.31 + 26 =
  24. 24.24 + 49 =
  25. 25.76 + 67 =
  26. 26.23 + 43 =
  27. 27.30 + 14 =
  28. 28.61 + 87 =
  29. 29.87 + 31 =
  30. 30.72 + 44 =
  31. 31.41 + 51 =
  32. 32.52 + 19 =
  33. 33.68 + 24 =
  34. 34.52 + 77 =
  35. 35.62 + 42 =
  36. 36.24 + 56 =
  37. 37.76 + 73 =
  38. 38.58 + 63 =
  39. 39.86 + 52 =
  40. 40.75 + 46 =

Answer key

  1. 64
  2. 120
  3. 74
  4. 112
  5. 87
  6. 111
  7. 107
  8. 153
  9. 136
  10. 111
  11. 137
  12. 122
  13. 83
  14. 120
  15. 80
  16. 94
  17. 66
  18. 99
  19. 82
  20. 70
  21. 84
  22. 131
  23. 57
  24. 73
  25. 143
  26. 66
  27. 44
  28. 148
  29. 118
  30. 116
  31. 92
  32. 71
  33. 92
  34. 129
  35. 104
  36. 80
  37. 149
  38. 121
  39. 138
  40. 121

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