← 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 654 · 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. 1.28 + 77 =
  2. 2.29 + 69 =
  3. 3.33 + 43 =
  4. 4.64 + 81 =
  5. 5.76 + 34 =
  6. 6.46 + 31 =
  7. 7.33 + 28 =
  8. 8.78 + 83 =
  9. 9.26 + 52 =
  10. 10.85 + 85 =
  11. 11.41 + 58 =
  12. 12.36 + 31 =
  13. 13.34 + 41 =
  14. 14.26 + 25 =
  15. 15.55 + 67 =
  16. 16.43 + 46 =
  17. 17.61 + 18 =
  18. 18.56 + 64 =
  19. 19.71 + 49 =
  20. 20.84 + 28 =
  21. 21.65 + 81 =
  22. 22.44 + 72 =
  23. 23.58 + 32 =
  24. 24.21 + 64 =
  25. 25.43 + 55 =
  26. 26.79 + 89 =
  27. 27.29 + 52 =
  28. 28.76 + 31 =
  29. 29.65 + 21 =
  30. 30.83 + 28 =
  31. 31.85 + 73 =
  32. 32.23 + 59 =
  33. 33.36 + 71 =
  34. 34.69 + 55 =
  35. 35.76 + 49 =
  36. 36.54 + 13 =
  37. 37.33 + 41 =
  38. 38.27 + 27 =
  39. 39.27 + 32 =
  40. 40.66 + 33 =

Answer key

  1. 105
  2. 98
  3. 76
  4. 145
  5. 110
  6. 77
  7. 61
  8. 161
  9. 78
  10. 170
  11. 99
  12. 67
  13. 75
  14. 51
  15. 122
  16. 89
  17. 79
  18. 120
  19. 120
  20. 112
  21. 146
  22. 116
  23. 90
  24. 85
  25. 98
  26. 168
  27. 81
  28. 107
  29. 86
  30. 111
  31. 158
  32. 82
  33. 107
  34. 124
  35. 125
  36. 67
  37. 74
  38. 54
  39. 59
  40. 99

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