← 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 426 · 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. 1.49 + 38 =
  2. 2.40 + 68 =
  3. 3.70 + 65 =
  4. 4.86 + 48 =
  5. 5.56 + 31 =
  6. 6.35 + 73 =
  7. 7.64 + 21 =
  8. 8.74 + 76 =
  9. 9.57 + 45 =
  10. 10.56 + 87 =
  11. 11.28 + 61 =
  12. 12.36 + 74 =
  13. 13.88 + 36 =
  14. 14.26 + 13 =
  15. 15.79 + 12 =
  16. 16.65 + 67 =
  17. 17.37 + 28 =
  18. 18.51 + 21 =
  19. 19.71 + 59 =
  20. 20.57 + 28 =
  21. 21.80 + 67 =
  22. 22.71 + 55 =
  23. 23.85 + 61 =
  24. 24.67 + 48 =
  25. 25.36 + 47 =
  26. 26.89 + 83 =
  27. 27.74 + 12 =
  28. 28.34 + 24 =
  29. 29.22 + 38 =
  30. 30.48 + 54 =
  31. 31.65 + 19 =
  32. 32.70 + 25 =
  33. 33.30 + 51 =
  34. 34.78 + 23 =
  35. 35.49 + 82 =
  36. 36.33 + 25 =
  37. 37.21 + 58 =
  38. 38.47 + 28 =
  39. 39.35 + 83 =
  40. 40.63 + 25 =

Answer key

  1. 87
  2. 108
  3. 135
  4. 134
  5. 87
  6. 108
  7. 85
  8. 150
  9. 102
  10. 143
  11. 89
  12. 110
  13. 124
  14. 39
  15. 91
  16. 132
  17. 65
  18. 72
  19. 130
  20. 85
  21. 147
  22. 126
  23. 146
  24. 115
  25. 83
  26. 172
  27. 86
  28. 58
  29. 60
  30. 102
  31. 84
  32. 95
  33. 81
  34. 101
  35. 131
  36. 58
  37. 79
  38. 75
  39. 118
  40. 88

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