← 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 402 · 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. 1.58 + 26 =
  2. 2.24 + 41 =
  3. 3.68 + 41 =
  4. 4.56 + 13 =
  5. 5.27 + 77 =
  6. 6.24 + 83 =
  7. 7.78 + 37 =
  8. 8.87 + 31 =
  9. 9.89 + 69 =
  10. 10.34 + 73 =
  11. 11.71 + 36 =
  12. 12.26 + 39 =
  13. 13.63 + 25 =
  14. 14.40 + 72 =
  15. 15.27 + 13 =
  16. 16.47 + 31 =
  17. 17.49 + 75 =
  18. 18.21 + 59 =
  19. 19.32 + 46 =
  20. 20.61 + 41 =
  21. 21.83 + 38 =
  22. 22.33 + 68 =
  23. 23.77 + 31 =
  24. 24.86 + 89 =
  25. 25.60 + 27 =
  26. 26.37 + 66 =
  27. 27.53 + 81 =
  28. 28.83 + 48 =
  29. 29.31 + 69 =
  30. 30.37 + 58 =
  31. 31.72 + 22 =
  32. 32.81 + 84 =
  33. 33.63 + 23 =
  34. 34.89 + 79 =
  35. 35.29 + 41 =
  36. 36.29 + 34 =
  37. 37.34 + 29 =
  38. 38.58 + 67 =
  39. 39.40 + 21 =
  40. 40.34 + 27 =

Answer key

  1. 84
  2. 65
  3. 109
  4. 69
  5. 104
  6. 107
  7. 115
  8. 118
  9. 158
  10. 107
  11. 107
  12. 65
  13. 88
  14. 112
  15. 40
  16. 78
  17. 124
  18. 80
  19. 78
  20. 102
  21. 121
  22. 101
  23. 108
  24. 175
  25. 87
  26. 103
  27. 134
  28. 131
  29. 100
  30. 95
  31. 94
  32. 165
  33. 86
  34. 168
  35. 70
  36. 63
  37. 63
  38. 125
  39. 61
  40. 61

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