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Mental Addition Worksheet for Class 2 and 3

Mental maths lesson 6: Add 2-digit numbers left to right · Set 132 · 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. 1.30 + 37 =
  2. 2.67 + 85 =
  3. 3.74 + 15 =
  4. 4.60 + 47 =
  5. 5.27 + 44 =
  6. 6.37 + 64 =
  7. 7.79 + 83 =
  8. 8.77 + 51 =
  9. 9.23 + 81 =
  10. 10.63 + 51 =
  11. 11.76 + 72 =
  12. 12.83 + 64 =
  13. 13.87 + 26 =
  14. 14.76 + 33 =
  15. 15.39 + 24 =
  16. 16.49 + 12 =
  17. 17.63 + 32 =
  18. 18.56 + 42 =
  19. 19.53 + 38 =
  20. 20.50 + 77 =
  21. 21.56 + 56 =
  22. 22.87 + 21 =
  23. 23.36 + 15 =
  24. 24.42 + 19 =
  25. 25.47 + 81 =
  26. 26.40 + 56 =
  27. 27.22 + 71 =
  28. 28.78 + 31 =
  29. 29.49 + 69 =
  30. 30.27 + 16 =
  31. 31.80 + 72 =
  32. 32.33 + 83 =
  33. 33.81 + 87 =
  34. 34.80 + 13 =
  35. 35.66 + 36 =
  36. 36.74 + 87 =
  37. 37.43 + 86 =
  38. 38.38 + 13 =
  39. 39.27 + 49 =
  40. 40.45 + 84 =

Answer key

  1. 67
  2. 152
  3. 89
  4. 107
  5. 71
  6. 101
  7. 162
  8. 128
  9. 104
  10. 114
  11. 148
  12. 147
  13. 113
  14. 109
  15. 63
  16. 61
  17. 95
  18. 98
  19. 91
  20. 127
  21. 112
  22. 108
  23. 51
  24. 61
  25. 128
  26. 96
  27. 93
  28. 109
  29. 118
  30. 43
  31. 152
  32. 116
  33. 168
  34. 93
  35. 102
  36. 161
  37. 129
  38. 51
  39. 76
  40. 129

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