← 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 360 · 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 + 39 =
  2. 2.84 + 87 =
  3. 3.36 + 54 =
  4. 4.80 + 86 =
  5. 5.51 + 86 =
  6. 6.77 + 88 =
  7. 7.68 + 38 =
  8. 8.34 + 69 =
  9. 9.80 + 79 =
  10. 10.85 + 78 =
  11. 11.24 + 77 =
  12. 12.53 + 57 =
  13. 13.25 + 81 =
  14. 14.76 + 68 =
  15. 15.33 + 57 =
  16. 16.61 + 14 =
  17. 17.55 + 57 =
  18. 18.89 + 36 =
  19. 19.27 + 59 =
  20. 20.85 + 53 =
  21. 21.68 + 17 =
  22. 22.63 + 81 =
  23. 23.60 + 75 =
  24. 24.40 + 12 =
  25. 25.84 + 37 =
  26. 26.84 + 84 =
  27. 27.57 + 28 =
  28. 28.38 + 35 =
  29. 29.29 + 35 =
  30. 30.48 + 27 =
  31. 31.42 + 32 =
  32. 32.49 + 27 =
  33. 33.77 + 64 =
  34. 34.80 + 12 =
  35. 35.74 + 17 =
  36. 36.26 + 84 =
  37. 37.67 + 62 =
  38. 38.51 + 62 =
  39. 39.24 + 64 =
  40. 40.54 + 13 =

Answer key

  1. 61
  2. 171
  3. 90
  4. 166
  5. 137
  6. 165
  7. 106
  8. 103
  9. 159
  10. 163
  11. 101
  12. 110
  13. 106
  14. 144
  15. 90
  16. 75
  17. 112
  18. 125
  19. 86
  20. 138
  21. 85
  22. 144
  23. 135
  24. 52
  25. 121
  26. 168
  27. 85
  28. 73
  29. 64
  30. 75
  31. 74
  32. 76
  33. 141
  34. 92
  35. 91
  36. 110
  37. 129
  38. 113
  39. 88
  40. 67

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