← 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 604 · 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 + 57 =
  2. 2.47 + 57 =
  3. 3.66 + 55 =
  4. 4.21 + 28 =
  5. 5.32 + 35 =
  6. 6.58 + 88 =
  7. 7.35 + 41 =
  8. 8.86 + 53 =
  9. 9.26 + 49 =
  10. 10.61 + 77 =
  11. 11.43 + 72 =
  12. 12.83 + 62 =
  13. 13.71 + 67 =
  14. 14.59 + 86 =
  15. 15.68 + 75 =
  16. 16.52 + 71 =
  17. 17.60 + 39 =
  18. 18.36 + 18 =
  19. 19.36 + 61 =
  20. 20.59 + 39 =
  21. 21.49 + 87 =
  22. 22.63 + 65 =
  23. 23.43 + 16 =
  24. 24.80 + 22 =
  25. 25.21 + 74 =
  26. 26.75 + 54 =
  27. 27.23 + 74 =
  28. 28.41 + 83 =
  29. 29.38 + 61 =
  30. 30.74 + 16 =
  31. 31.31 + 31 =
  32. 32.26 + 83 =
  33. 33.21 + 49 =
  34. 34.21 + 34 =
  35. 35.74 + 33 =
  36. 36.32 + 41 =
  37. 37.24 + 85 =
  38. 38.59 + 51 =
  39. 39.41 + 41 =
  40. 40.30 + 12 =

Answer key

  1. 97
  2. 104
  3. 121
  4. 49
  5. 67
  6. 146
  7. 76
  8. 139
  9. 75
  10. 138
  11. 115
  12. 145
  13. 138
  14. 145
  15. 143
  16. 123
  17. 99
  18. 54
  19. 97
  20. 98
  21. 136
  22. 128
  23. 59
  24. 102
  25. 95
  26. 129
  27. 97
  28. 124
  29. 99
  30. 90
  31. 62
  32. 109
  33. 70
  34. 55
  35. 107
  36. 73
  37. 109
  38. 110
  39. 82
  40. 42

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