← 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 560 · 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. 1.68 + 18 =
  2. 2.50 + 33 =
  3. 3.66 + 69 =
  4. 4.83 + 89 =
  5. 5.89 + 54 =
  6. 6.46 + 88 =
  7. 7.82 + 12 =
  8. 8.38 + 47 =
  9. 9.42 + 48 =
  10. 10.65 + 69 =
  11. 11.50 + 88 =
  12. 12.68 + 16 =
  13. 13.82 + 46 =
  14. 14.70 + 44 =
  15. 15.60 + 88 =
  16. 16.39 + 82 =
  17. 17.24 + 31 =
  18. 18.47 + 34 =
  19. 19.21 + 56 =
  20. 20.39 + 39 =
  21. 21.54 + 26 =
  22. 22.67 + 79 =
  23. 23.29 + 46 =
  24. 24.86 + 62 =
  25. 25.42 + 47 =
  26. 26.83 + 85 =
  27. 27.86 + 17 =
  28. 28.89 + 14 =
  29. 29.21 + 44 =
  30. 30.22 + 85 =
  31. 31.38 + 49 =
  32. 32.54 + 38 =
  33. 33.21 + 14 =
  34. 34.35 + 13 =
  35. 35.26 + 58 =
  36. 36.78 + 87 =
  37. 37.78 + 13 =
  38. 38.21 + 27 =
  39. 39.87 + 13 =
  40. 40.30 + 29 =

Answer key

  1. 86
  2. 83
  3. 135
  4. 172
  5. 143
  6. 134
  7. 94
  8. 85
  9. 90
  10. 134
  11. 138
  12. 84
  13. 128
  14. 114
  15. 148
  16. 121
  17. 55
  18. 81
  19. 77
  20. 78
  21. 80
  22. 146
  23. 75
  24. 148
  25. 89
  26. 168
  27. 103
  28. 103
  29. 65
  30. 107
  31. 87
  32. 92
  33. 35
  34. 48
  35. 84
  36. 165
  37. 91
  38. 48
  39. 100
  40. 59

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