← 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 811 · 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. 1.22 + 58 =
  2. 2.63 + 73 =
  3. 3.66 + 21 =
  4. 4.40 + 21 =
  5. 5.25 + 79 =
  6. 6.45 + 54 =
  7. 7.29 + 31 =
  8. 8.56 + 34 =
  9. 9.21 + 86 =
  10. 10.65 + 72 =
  11. 11.74 + 43 =
  12. 12.42 + 81 =
  13. 13.43 + 84 =
  14. 14.46 + 29 =
  15. 15.34 + 82 =
  16. 16.35 + 12 =
  17. 17.23 + 73 =
  18. 18.89 + 69 =
  19. 19.54 + 12 =
  20. 20.21 + 71 =
  21. 21.74 + 21 =
  22. 22.40 + 16 =
  23. 23.75 + 55 =
  24. 24.47 + 13 =
  25. 25.30 + 86 =
  26. 26.88 + 81 =
  27. 27.87 + 16 =
  28. 28.36 + 89 =
  29. 29.44 + 87 =
  30. 30.85 + 67 =
  31. 31.43 + 45 =
  32. 32.29 + 87 =
  33. 33.70 + 88 =
  34. 34.76 + 66 =
  35. 35.23 + 12 =
  36. 36.37 + 68 =
  37. 37.42 + 56 =
  38. 38.61 + 35 =
  39. 39.66 + 26 =
  40. 40.24 + 78 =

Answer key

  1. 80
  2. 136
  3. 87
  4. 61
  5. 104
  6. 99
  7. 60
  8. 90
  9. 107
  10. 137
  11. 117
  12. 123
  13. 127
  14. 75
  15. 116
  16. 47
  17. 96
  18. 158
  19. 66
  20. 92
  21. 95
  22. 56
  23. 130
  24. 60
  25. 116
  26. 169
  27. 103
  28. 125
  29. 131
  30. 152
  31. 88
  32. 116
  33. 158
  34. 142
  35. 35
  36. 105
  37. 98
  38. 96
  39. 92
  40. 102

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