← 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 417 · 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. 1.51 + 13 =
  2. 2.73 + 87 =
  3. 3.52 + 59 =
  4. 4.24 + 51 =
  5. 5.76 + 33 =
  6. 6.34 + 56 =
  7. 7.21 + 63 =
  8. 8.64 + 12 =
  9. 9.69 + 35 =
  10. 10.22 + 61 =
  11. 11.87 + 14 =
  12. 12.45 + 55 =
  13. 13.26 + 33 =
  14. 14.89 + 74 =
  15. 15.30 + 87 =
  16. 16.57 + 58 =
  17. 17.61 + 38 =
  18. 18.66 + 26 =
  19. 19.82 + 75 =
  20. 20.56 + 59 =
  21. 21.46 + 57 =
  22. 22.38 + 26 =
  23. 23.60 + 89 =
  24. 24.33 + 52 =
  25. 25.63 + 54 =
  26. 26.40 + 63 =
  27. 27.23 + 31 =
  28. 28.34 + 62 =
  29. 29.30 + 57 =
  30. 30.33 + 47 =
  31. 31.31 + 36 =
  32. 32.29 + 87 =
  33. 33.43 + 61 =
  34. 34.53 + 29 =
  35. 35.36 + 61 =
  36. 36.89 + 85 =
  37. 37.76 + 46 =
  38. 38.59 + 12 =
  39. 39.30 + 15 =
  40. 40.26 + 84 =

Answer key

  1. 64
  2. 160
  3. 111
  4. 75
  5. 109
  6. 90
  7. 84
  8. 76
  9. 104
  10. 83
  11. 101
  12. 100
  13. 59
  14. 163
  15. 117
  16. 115
  17. 99
  18. 92
  19. 157
  20. 115
  21. 103
  22. 64
  23. 149
  24. 85
  25. 117
  26. 103
  27. 54
  28. 96
  29. 87
  30. 80
  31. 67
  32. 116
  33. 104
  34. 82
  35. 97
  36. 174
  37. 122
  38. 71
  39. 45
  40. 110

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