← 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 338 · 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. 1.40 + 15 =
  2. 2.21 + 51 =
  3. 3.88 + 43 =
  4. 4.43 + 21 =
  5. 5.40 + 46 =
  6. 6.86 + 43 =
  7. 7.69 + 34 =
  8. 8.35 + 26 =
  9. 9.67 + 39 =
  10. 10.37 + 26 =
  11. 11.60 + 83 =
  12. 12.44 + 35 =
  13. 13.86 + 75 =
  14. 14.63 + 85 =
  15. 15.82 + 67 =
  16. 16.36 + 26 =
  17. 17.68 + 59 =
  18. 18.82 + 66 =
  19. 19.87 + 12 =
  20. 20.71 + 77 =
  21. 21.21 + 43 =
  22. 22.30 + 76 =
  23. 23.69 + 31 =
  24. 24.46 + 51 =
  25. 25.67 + 16 =
  26. 26.61 + 65 =
  27. 27.21 + 47 =
  28. 28.33 + 61 =
  29. 29.35 + 31 =
  30. 30.81 + 29 =
  31. 31.72 + 36 =
  32. 32.73 + 42 =
  33. 33.51 + 28 =
  34. 34.38 + 16 =
  35. 35.30 + 58 =
  36. 36.26 + 76 =
  37. 37.53 + 73 =
  38. 38.36 + 51 =
  39. 39.29 + 32 =
  40. 40.54 + 19 =

Answer key

  1. 55
  2. 72
  3. 131
  4. 64
  5. 86
  6. 129
  7. 103
  8. 61
  9. 106
  10. 63
  11. 143
  12. 79
  13. 161
  14. 148
  15. 149
  16. 62
  17. 127
  18. 148
  19. 99
  20. 148
  21. 64
  22. 106
  23. 100
  24. 97
  25. 83
  26. 126
  27. 68
  28. 94
  29. 66
  30. 110
  31. 108
  32. 115
  33. 79
  34. 54
  35. 88
  36. 102
  37. 126
  38. 87
  39. 61
  40. 73

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