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
- 1.59 + 73 =
- 2.48 + 59 =
- 3.33 + 12 =
- 4.87 + 14 =
- 5.72 + 15 =
- 6.55 + 75 =
- 7.35 + 49 =
- 8.78 + 29 =
- 9.85 + 85 =
- 10.22 + 76 =
- 11.76 + 81 =
- 12.21 + 31 =
- 13.56 + 84 =
- 14.53 + 33 =
- 15.39 + 22 =
- 16.32 + 25 =
- 17.46 + 75 =
- 18.34 + 38 =
- 19.65 + 64 =
- 20.70 + 13 =
- 21.30 + 29 =
- 22.23 + 33 =
- 23.32 + 75 =
- 24.73 + 31 =
- 25.38 + 12 =
- 26.39 + 77 =
- 27.88 + 51 =
- 28.39 + 53 =
- 29.43 + 29 =
- 30.86 + 65 =
- 31.58 + 39 =
- 32.54 + 37 =
- 33.73 + 68 =
- 34.48 + 36 =
- 35.65 + 38 =
- 36.37 + 27 =
- 37.55 + 77 =
- 38.67 + 15 =
- 39.38 + 17 =
- 40.25 + 25 =
Answer key
- 132
- 107
- 45
- 101
- 87
- 130
- 84
- 107
- 170
- 98
- 157
- 52
- 140
- 86
- 61
- 57
- 121
- 72
- 129
- 83
- 59
- 56
- 107
- 104
- 50
- 116
- 139
- 92
- 72
- 151
- 97
- 91
- 141
- 84
- 103
- 64
- 132
- 82
- 55
- 50
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths