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
- 1.60 + 26 =
- 2.47 + 16 =
- 3.24 + 58 =
- 4.70 + 15 =
- 5.23 + 31 =
- 6.39 + 64 =
- 7.45 + 41 =
- 8.38 + 47 =
- 9.33 + 21 =
- 10.37 + 56 =
- 11.44 + 69 =
- 12.53 + 26 =
- 13.30 + 79 =
- 14.84 + 44 =
- 15.56 + 37 =
- 16.63 + 17 =
- 17.78 + 44 =
- 18.86 + 76 =
- 19.69 + 56 =
- 20.30 + 83 =
- 21.87 + 51 =
- 22.44 + 46 =
- 23.88 + 71 =
- 24.35 + 82 =
- 25.37 + 87 =
- 26.35 + 89 =
- 27.27 + 54 =
- 28.46 + 17 =
- 29.73 + 17 =
- 30.65 + 76 =
- 31.31 + 66 =
- 32.50 + 14 =
- 33.33 + 42 =
- 34.27 + 59 =
- 35.66 + 66 =
- 36.52 + 77 =
- 37.40 + 57 =
- 38.21 + 89 =
- 39.60 + 12 =
- 40.29 + 86 =
Answer key
- 86
- 63
- 82
- 85
- 54
- 103
- 86
- 85
- 54
- 93
- 113
- 79
- 109
- 128
- 93
- 80
- 122
- 162
- 125
- 113
- 138
- 90
- 159
- 117
- 124
- 124
- 81
- 63
- 90
- 141
- 97
- 64
- 75
- 86
- 132
- 129
- 97
- 110
- 72
- 115
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths