← 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 55 · 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. 1.27 + 67 =
  2. 2.80 + 27 =
  3. 3.78 + 38 =
  4. 4.43 + 64 =
  5. 5.56 + 51 =
  6. 6.61 + 83 =
  7. 7.83 + 31 =
  8. 8.58 + 43 =
  9. 9.35 + 54 =
  10. 10.44 + 58 =
  11. 11.66 + 26 =
  12. 12.30 + 31 =
  13. 13.23 + 67 =
  14. 14.54 + 54 =
  15. 15.68 + 61 =
  16. 16.86 + 81 =
  17. 17.30 + 68 =
  18. 18.51 + 29 =
  19. 19.54 + 31 =
  20. 20.34 + 73 =
  21. 21.31 + 66 =
  22. 22.60 + 88 =
  23. 23.43 + 42 =
  24. 24.88 + 77 =
  25. 25.66 + 54 =
  26. 26.76 + 51 =
  27. 27.37 + 47 =
  28. 28.79 + 21 =
  29. 29.56 + 56 =
  30. 30.52 + 29 =
  31. 31.30 + 71 =
  32. 32.51 + 31 =
  33. 33.40 + 51 =
  34. 34.53 + 17 =
  35. 35.47 + 66 =
  36. 36.86 + 51 =
  37. 37.33 + 68 =
  38. 38.61 + 78 =
  39. 39.67 + 24 =
  40. 40.86 + 84 =

Answer key

  1. 94
  2. 107
  3. 116
  4. 107
  5. 107
  6. 144
  7. 114
  8. 101
  9. 89
  10. 102
  11. 92
  12. 61
  13. 90
  14. 108
  15. 129
  16. 167
  17. 98
  18. 80
  19. 85
  20. 107
  21. 97
  22. 148
  23. 85
  24. 165
  25. 120
  26. 127
  27. 84
  28. 100
  29. 112
  30. 81
  31. 101
  32. 82
  33. 91
  34. 70
  35. 113
  36. 137
  37. 101
  38. 139
  39. 91
  40. 170

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