Mental Addition Worksheet for Class 2 and 3
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
- 1.28 + 41 =
- 2.45 + 62 =
- 3.82 + 82 =
- 4.79 + 15 =
- 5.42 + 86 =
- 6.27 + 32 =
- 7.86 + 12 =
- 8.66 + 71 =
- 9.26 + 32 =
- 10.26 + 38 =
- 11.53 + 14 =
- 12.62 + 21 =
- 13.24 + 85 =
- 14.34 + 32 =
- 15.62 + 27 =
- 16.46 + 17 =
- 17.42 + 72 =
- 18.63 + 13 =
- 19.79 + 53 =
- 20.21 + 36 =
- 21.61 + 43 =
- 22.77 + 39 =
- 23.38 + 17 =
- 24.69 + 35 =
- 25.48 + 78 =
- 26.66 + 21 =
- 27.36 + 51 =
- 28.83 + 73 =
- 29.40 + 42 =
- 30.32 + 74 =
- 31.81 + 23 =
- 32.22 + 89 =
- 33.89 + 65 =
- 34.27 + 84 =
- 35.82 + 13 =
- 36.70 + 31 =
- 37.21 + 32 =
- 38.47 + 86 =
- 39.41 + 58 =
- 40.49 + 76 =
Answer key
- 69
- 107
- 164
- 94
- 128
- 59
- 98
- 137
- 58
- 64
- 67
- 83
- 109
- 66
- 89
- 63
- 114
- 76
- 132
- 57
- 104
- 116
- 55
- 104
- 126
- 87
- 87
- 156
- 82
- 106
- 104
- 111
- 154
- 111
- 95
- 101
- 53
- 133
- 99
- 125
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths