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
- 1.25 + 46 =
- 2.50 + 84 =
- 3.79 + 24 =
- 4.85 + 51 =
- 5.80 + 27 =
- 6.72 + 55 =
- 7.46 + 16 =
- 8.37 + 52 =
- 9.23 + 14 =
- 10.70 + 48 =
- 11.47 + 67 =
- 12.22 + 24 =
- 13.32 + 24 =
- 14.22 + 22 =
- 15.21 + 73 =
- 16.89 + 41 =
- 17.86 + 43 =
- 18.52 + 36 =
- 19.36 + 36 =
- 20.87 + 26 =
- 21.30 + 66 =
- 22.63 + 35 =
- 23.85 + 25 =
- 24.35 + 47 =
- 25.23 + 27 =
- 26.63 + 83 =
- 27.87 + 83 =
- 28.82 + 85 =
- 29.63 + 86 =
- 30.32 + 85 =
- 31.38 + 41 =
- 32.74 + 74 =
- 33.42 + 49 =
- 34.24 + 33 =
- 35.78 + 76 =
- 36.26 + 36 =
- 37.62 + 13 =
- 38.77 + 62 =
- 39.39 + 34 =
- 40.46 + 52 =
Answer key
- 71
- 134
- 103
- 136
- 107
- 127
- 62
- 89
- 37
- 118
- 114
- 46
- 56
- 44
- 94
- 130
- 129
- 88
- 72
- 113
- 96
- 98
- 110
- 82
- 50
- 146
- 170
- 167
- 149
- 117
- 79
- 148
- 91
- 57
- 154
- 62
- 75
- 139
- 73
- 98
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths