← 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 591 · 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. 1.59 + 29 =
  2. 2.34 + 15 =
  3. 3.37 + 76 =
  4. 4.26 + 52 =
  5. 5.27 + 14 =
  6. 6.64 + 54 =
  7. 7.76 + 45 =
  8. 8.22 + 33 =
  9. 9.34 + 23 =
  10. 10.69 + 81 =
  11. 11.34 + 29 =
  12. 12.60 + 29 =
  13. 13.56 + 21 =
  14. 14.21 + 28 =
  15. 15.59 + 21 =
  16. 16.29 + 62 =
  17. 17.72 + 28 =
  18. 18.36 + 34 =
  19. 19.53 + 12 =
  20. 20.22 + 82 =
  21. 21.80 + 67 =
  22. 22.48 + 89 =
  23. 23.38 + 89 =
  24. 24.87 + 54 =
  25. 25.21 + 71 =
  26. 26.89 + 19 =
  27. 27.52 + 82 =
  28. 28.49 + 58 =
  29. 29.29 + 14 =
  30. 30.54 + 53 =
  31. 31.69 + 16 =
  32. 32.56 + 74 =
  33. 33.39 + 17 =
  34. 34.36 + 21 =
  35. 35.58 + 21 =
  36. 36.75 + 81 =
  37. 37.89 + 42 =
  38. 38.57 + 88 =
  39. 39.63 + 29 =
  40. 40.23 + 54 =

Answer key

  1. 88
  2. 49
  3. 113
  4. 78
  5. 41
  6. 118
  7. 121
  8. 55
  9. 57
  10. 150
  11. 63
  12. 89
  13. 77
  14. 49
  15. 80
  16. 91
  17. 100
  18. 70
  19. 65
  20. 104
  21. 147
  22. 137
  23. 127
  24. 141
  25. 92
  26. 108
  27. 134
  28. 107
  29. 43
  30. 107
  31. 85
  32. 130
  33. 56
  34. 57
  35. 79
  36. 156
  37. 131
  38. 145
  39. 92
  40. 77

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