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
- 1.76 + 76 =
- 2.83 + 85 =
- 3.87 + 69 =
- 4.64 + 71 =
- 5.78 + 17 =
- 6.84 + 42 =
- 7.53 + 42 =
- 8.32 + 83 =
- 9.41 + 61 =
- 10.64 + 83 =
- 11.73 + 43 =
- 12.84 + 14 =
- 13.59 + 38 =
- 14.43 + 14 =
- 15.63 + 31 =
- 16.78 + 18 =
- 17.82 + 77 =
- 18.41 + 21 =
- 19.70 + 57 =
- 20.78 + 53 =
- 21.74 + 29 =
- 22.38 + 65 =
- 23.48 + 61 =
- 24.40 + 34 =
- 25.55 + 45 =
- 26.32 + 79 =
- 27.64 + 73 =
- 28.53 + 24 =
- 29.68 + 44 =
- 30.64 + 34 =
- 31.27 + 89 =
- 32.28 + 28 =
- 33.71 + 21 =
- 34.61 + 47 =
- 35.88 + 88 =
- 36.56 + 88 =
- 37.88 + 42 =
- 38.30 + 26 =
- 39.26 + 79 =
- 40.82 + 22 =
Answer key
- 152
- 168
- 156
- 135
- 95
- 126
- 95
- 115
- 102
- 147
- 116
- 98
- 97
- 57
- 94
- 96
- 159
- 62
- 127
- 131
- 103
- 103
- 109
- 74
- 100
- 111
- 137
- 77
- 112
- 98
- 116
- 56
- 92
- 108
- 176
- 144
- 130
- 56
- 105
- 104
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths