← 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 640 · 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. 1.76 + 67 =
  2. 2.74 + 69 =
  3. 3.35 + 83 =
  4. 4.34 + 68 =
  5. 5.54 + 73 =
  6. 6.33 + 21 =
  7. 7.68 + 74 =
  8. 8.72 + 82 =
  9. 9.70 + 36 =
  10. 10.42 + 22 =
  11. 11.87 + 36 =
  12. 12.52 + 31 =
  13. 13.60 + 65 =
  14. 14.62 + 72 =
  15. 15.30 + 63 =
  16. 16.50 + 28 =
  17. 17.74 + 86 =
  18. 18.42 + 33 =
  19. 19.86 + 76 =
  20. 20.64 + 83 =
  21. 21.62 + 13 =
  22. 22.32 + 69 =
  23. 23.25 + 69 =
  24. 24.32 + 71 =
  25. 25.29 + 78 =
  26. 26.78 + 13 =
  27. 27.81 + 58 =
  28. 28.27 + 15 =
  29. 29.63 + 81 =
  30. 30.62 + 69 =
  31. 31.21 + 23 =
  32. 32.27 + 33 =
  33. 33.78 + 42 =
  34. 34.24 + 12 =
  35. 35.70 + 33 =
  36. 36.33 + 49 =
  37. 37.81 + 55 =
  38. 38.79 + 78 =
  39. 39.32 + 88 =
  40. 40.30 + 71 =

Answer key

  1. 143
  2. 143
  3. 118
  4. 102
  5. 127
  6. 54
  7. 142
  8. 154
  9. 106
  10. 64
  11. 123
  12. 83
  13. 125
  14. 134
  15. 93
  16. 78
  17. 160
  18. 75
  19. 162
  20. 147
  21. 75
  22. 101
  23. 94
  24. 103
  25. 107
  26. 91
  27. 139
  28. 42
  29. 144
  30. 131
  31. 44
  32. 60
  33. 120
  34. 36
  35. 103
  36. 82
  37. 136
  38. 157
  39. 120
  40. 101

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