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
- 1.56 + 38 =
- 2.22 + 79 =
- 3.79 + 81 =
- 4.46 + 36 =
- 5.22 + 24 =
- 6.21 + 57 =
- 7.26 + 33 =
- 8.76 + 12 =
- 9.33 + 56 =
- 10.75 + 74 =
- 11.49 + 57 =
- 12.31 + 61 =
- 13.62 + 81 =
- 14.27 + 39 =
- 15.36 + 69 =
- 16.61 + 28 =
- 17.23 + 53 =
- 18.61 + 71 =
- 19.76 + 44 =
- 20.62 + 32 =
- 21.39 + 27 =
- 22.68 + 76 =
- 23.86 + 23 =
- 24.77 + 75 =
- 25.47 + 35 =
- 26.43 + 12 =
- 27.34 + 43 =
- 28.40 + 14 =
- 29.72 + 26 =
- 30.59 + 25 =
- 31.75 + 41 =
- 32.27 + 56 =
- 33.63 + 34 =
- 34.76 + 21 =
- 35.36 + 56 =
- 36.66 + 15 =
- 37.75 + 71 =
- 38.75 + 49 =
- 39.65 + 59 =
- 40.33 + 69 =
Answer key
- 94
- 101
- 160
- 82
- 46
- 78
- 59
- 88
- 89
- 149
- 106
- 92
- 143
- 66
- 105
- 89
- 76
- 132
- 120
- 94
- 66
- 144
- 109
- 152
- 82
- 55
- 77
- 54
- 98
- 84
- 116
- 83
- 97
- 97
- 92
- 81
- 146
- 124
- 124
- 102
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths