← 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 255 · 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. 1.54 + 26 =
  2. 2.68 + 75 =
  3. 3.40 + 31 =
  4. 4.28 + 37 =
  5. 5.66 + 72 =
  6. 6.31 + 72 =
  7. 7.87 + 87 =
  8. 8.73 + 28 =
  9. 9.73 + 22 =
  10. 10.42 + 57 =
  11. 11.39 + 82 =
  12. 12.46 + 13 =
  13. 13.85 + 35 =
  14. 14.74 + 61 =
  15. 15.83 + 13 =
  16. 16.85 + 55 =
  17. 17.88 + 28 =
  18. 18.53 + 24 =
  19. 19.63 + 27 =
  20. 20.68 + 63 =
  21. 21.30 + 46 =
  22. 22.81 + 74 =
  23. 23.53 + 85 =
  24. 24.53 + 56 =
  25. 25.40 + 16 =
  26. 26.53 + 83 =
  27. 27.48 + 45 =
  28. 28.55 + 54 =
  29. 29.67 + 67 =
  30. 30.27 + 51 =
  31. 31.80 + 37 =
  32. 32.66 + 77 =
  33. 33.21 + 85 =
  34. 34.80 + 88 =
  35. 35.34 + 62 =
  36. 36.35 + 14 =
  37. 37.83 + 59 =
  38. 38.28 + 61 =
  39. 39.57 + 23 =
  40. 40.57 + 66 =

Answer key

  1. 80
  2. 143
  3. 71
  4. 65
  5. 138
  6. 103
  7. 174
  8. 101
  9. 95
  10. 99
  11. 121
  12. 59
  13. 120
  14. 135
  15. 96
  16. 140
  17. 116
  18. 77
  19. 90
  20. 131
  21. 76
  22. 155
  23. 138
  24. 109
  25. 56
  26. 136
  27. 93
  28. 109
  29. 134
  30. 78
  31. 117
  32. 143
  33. 106
  34. 168
  35. 96
  36. 49
  37. 142
  38. 89
  39. 80
  40. 123

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