← 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 494 · 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. 1.44 + 18 =
  2. 2.65 + 89 =
  3. 3.32 + 39 =
  4. 4.45 + 81 =
  5. 5.27 + 87 =
  6. 6.39 + 25 =
  7. 7.81 + 87 =
  8. 8.53 + 49 =
  9. 9.35 + 17 =
  10. 10.80 + 75 =
  11. 11.66 + 54 =
  12. 12.34 + 41 =
  13. 13.49 + 49 =
  14. 14.27 + 83 =
  15. 15.89 + 34 =
  16. 16.24 + 37 =
  17. 17.53 + 26 =
  18. 18.21 + 61 =
  19. 19.46 + 26 =
  20. 20.35 + 71 =
  21. 21.53 + 52 =
  22. 22.37 + 43 =
  23. 23.25 + 86 =
  24. 24.38 + 88 =
  25. 25.72 + 15 =
  26. 26.31 + 33 =
  27. 27.79 + 58 =
  28. 28.40 + 34 =
  29. 29.38 + 35 =
  30. 30.71 + 23 =
  31. 31.25 + 79 =
  32. 32.74 + 38 =
  33. 33.47 + 16 =
  34. 34.47 + 41 =
  35. 35.38 + 51 =
  36. 36.63 + 33 =
  37. 37.55 + 77 =
  38. 38.75 + 44 =
  39. 39.40 + 15 =
  40. 40.74 + 12 =

Answer key

  1. 62
  2. 154
  3. 71
  4. 126
  5. 114
  6. 64
  7. 168
  8. 102
  9. 52
  10. 155
  11. 120
  12. 75
  13. 98
  14. 110
  15. 123
  16. 61
  17. 79
  18. 82
  19. 72
  20. 106
  21. 105
  22. 80
  23. 111
  24. 126
  25. 87
  26. 64
  27. 137
  28. 74
  29. 73
  30. 94
  31. 104
  32. 112
  33. 63
  34. 88
  35. 89
  36. 96
  37. 132
  38. 119
  39. 55
  40. 86

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