← 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 707 · 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. 1.37 + 35 =
  2. 2.31 + 15 =
  3. 3.85 + 37 =
  4. 4.33 + 35 =
  5. 5.51 + 21 =
  6. 6.85 + 57 =
  7. 7.55 + 51 =
  8. 8.61 + 48 =
  9. 9.61 + 33 =
  10. 10.76 + 13 =
  11. 11.35 + 54 =
  12. 12.27 + 53 =
  13. 13.57 + 81 =
  14. 14.82 + 31 =
  15. 15.62 + 13 =
  16. 16.57 + 61 =
  17. 17.77 + 59 =
  18. 18.32 + 31 =
  19. 19.54 + 46 =
  20. 20.85 + 13 =
  21. 21.30 + 65 =
  22. 22.83 + 34 =
  23. 23.73 + 16 =
  24. 24.41 + 36 =
  25. 25.41 + 71 =
  26. 26.50 + 42 =
  27. 27.74 + 72 =
  28. 28.62 + 67 =
  29. 29.29 + 52 =
  30. 30.75 + 52 =
  31. 31.39 + 51 =
  32. 32.61 + 76 =
  33. 33.59 + 87 =
  34. 34.76 + 44 =
  35. 35.29 + 62 =
  36. 36.43 + 45 =
  37. 37.47 + 73 =
  38. 38.46 + 63 =
  39. 39.67 + 21 =
  40. 40.73 + 41 =

Answer key

  1. 72
  2. 46
  3. 122
  4. 68
  5. 72
  6. 142
  7. 106
  8. 109
  9. 94
  10. 89
  11. 89
  12. 80
  13. 138
  14. 113
  15. 75
  16. 118
  17. 136
  18. 63
  19. 100
  20. 98
  21. 95
  22. 117
  23. 89
  24. 77
  25. 112
  26. 92
  27. 146
  28. 129
  29. 81
  30. 127
  31. 90
  32. 137
  33. 146
  34. 120
  35. 91
  36. 88
  37. 120
  38. 109
  39. 88
  40. 114

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