← 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 800 · 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. 1.29 + 79 =
  2. 2.81 + 76 =
  3. 3.80 + 76 =
  4. 4.80 + 56 =
  5. 5.48 + 25 =
  6. 6.35 + 31 =
  7. 7.50 + 17 =
  8. 8.85 + 38 =
  9. 9.43 + 41 =
  10. 10.76 + 67 =
  11. 11.35 + 81 =
  12. 12.61 + 81 =
  13. 13.23 + 29 =
  14. 14.36 + 74 =
  15. 15.29 + 52 =
  16. 16.29 + 49 =
  17. 17.59 + 51 =
  18. 18.70 + 52 =
  19. 19.73 + 17 =
  20. 20.65 + 86 =
  21. 21.24 + 75 =
  22. 22.65 + 51 =
  23. 23.55 + 74 =
  24. 24.40 + 13 =
  25. 25.74 + 17 =
  26. 26.87 + 62 =
  27. 27.85 + 85 =
  28. 28.44 + 87 =
  29. 29.71 + 27 =
  30. 30.23 + 28 =
  31. 31.85 + 37 =
  32. 32.65 + 62 =
  33. 33.26 + 84 =
  34. 34.31 + 21 =
  35. 35.64 + 43 =
  36. 36.70 + 31 =
  37. 37.54 + 25 =
  38. 38.45 + 43 =
  39. 39.22 + 18 =
  40. 40.21 + 45 =

Answer key

  1. 108
  2. 157
  3. 156
  4. 136
  5. 73
  6. 66
  7. 67
  8. 123
  9. 84
  10. 143
  11. 116
  12. 142
  13. 52
  14. 110
  15. 81
  16. 78
  17. 110
  18. 122
  19. 90
  20. 151
  21. 99
  22. 116
  23. 129
  24. 53
  25. 91
  26. 149
  27. 170
  28. 131
  29. 98
  30. 51
  31. 122
  32. 127
  33. 110
  34. 52
  35. 107
  36. 101
  37. 79
  38. 88
  39. 40
  40. 66

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