← 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 243 · 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. 1.33 + 29 =
  2. 2.48 + 32 =
  3. 3.31 + 51 =
  4. 4.51 + 61 =
  5. 5.62 + 63 =
  6. 6.37 + 87 =
  7. 7.53 + 23 =
  8. 8.31 + 41 =
  9. 9.61 + 31 =
  10. 10.88 + 59 =
  11. 11.31 + 14 =
  12. 12.61 + 13 =
  13. 13.38 + 65 =
  14. 14.31 + 39 =
  15. 15.59 + 13 =
  16. 16.25 + 32 =
  17. 17.87 + 51 =
  18. 18.65 + 25 =
  19. 19.38 + 56 =
  20. 20.69 + 68 =
  21. 21.58 + 38 =
  22. 22.37 + 81 =
  23. 23.41 + 73 =
  24. 24.35 + 31 =
  25. 25.45 + 81 =
  26. 26.80 + 61 =
  27. 27.61 + 12 =
  28. 28.35 + 39 =
  29. 29.74 + 41 =
  30. 30.84 + 41 =
  31. 31.40 + 71 =
  32. 32.44 + 78 =
  33. 33.27 + 54 =
  34. 34.80 + 85 =
  35. 35.65 + 78 =
  36. 36.46 + 25 =
  37. 37.46 + 28 =
  38. 38.41 + 21 =
  39. 39.30 + 14 =
  40. 40.34 + 27 =

Answer key

  1. 62
  2. 80
  3. 82
  4. 112
  5. 125
  6. 124
  7. 76
  8. 72
  9. 92
  10. 147
  11. 45
  12. 74
  13. 103
  14. 70
  15. 72
  16. 57
  17. 138
  18. 90
  19. 94
  20. 137
  21. 96
  22. 118
  23. 114
  24. 66
  25. 126
  26. 141
  27. 73
  28. 74
  29. 115
  30. 125
  31. 111
  32. 122
  33. 81
  34. 165
  35. 143
  36. 71
  37. 74
  38. 62
  39. 44
  40. 61

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