← 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 495 · 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. 1.23 + 19 =
  2. 2.29 + 87 =
  3. 3.33 + 32 =
  4. 4.52 + 44 =
  5. 5.47 + 36 =
  6. 6.52 + 71 =
  7. 7.83 + 89 =
  8. 8.31 + 15 =
  9. 9.88 + 31 =
  10. 10.56 + 26 =
  11. 11.81 + 49 =
  12. 12.69 + 18 =
  13. 13.70 + 47 =
  14. 14.34 + 89 =
  15. 15.81 + 45 =
  16. 16.46 + 59 =
  17. 17.41 + 14 =
  18. 18.79 + 29 =
  19. 19.25 + 23 =
  20. 20.21 + 26 =
  21. 21.48 + 33 =
  22. 22.30 + 41 =
  23. 23.38 + 68 =
  24. 24.73 + 72 =
  25. 25.37 + 72 =
  26. 26.81 + 43 =
  27. 27.21 + 39 =
  28. 28.21 + 29 =
  29. 29.26 + 75 =
  30. 30.21 + 51 =
  31. 31.78 + 86 =
  32. 32.46 + 71 =
  33. 33.36 + 28 =
  34. 34.71 + 74 =
  35. 35.43 + 72 =
  36. 36.49 + 76 =
  37. 37.87 + 33 =
  38. 38.23 + 68 =
  39. 39.55 + 55 =
  40. 40.62 + 31 =

Answer key

  1. 42
  2. 116
  3. 65
  4. 96
  5. 83
  6. 123
  7. 172
  8. 46
  9. 119
  10. 82
  11. 130
  12. 87
  13. 117
  14. 123
  15. 126
  16. 105
  17. 55
  18. 108
  19. 48
  20. 47
  21. 81
  22. 71
  23. 106
  24. 145
  25. 109
  26. 124
  27. 60
  28. 50
  29. 101
  30. 72
  31. 164
  32. 117
  33. 64
  34. 145
  35. 115
  36. 125
  37. 120
  38. 91
  39. 110
  40. 93

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