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
- 1.33 + 61 =
- 2.61 + 73 =
- 3.81 + 42 =
- 4.24 + 16 =
- 5.55 + 76 =
- 6.86 + 89 =
- 7.81 + 13 =
- 8.31 + 49 =
- 9.58 + 37 =
- 10.71 + 62 =
- 11.33 + 33 =
- 12.88 + 63 =
- 13.48 + 17 =
- 14.58 + 43 =
- 15.23 + 81 =
- 16.51 + 61 =
- 17.46 + 26 =
- 18.67 + 18 =
- 19.39 + 55 =
- 20.65 + 31 =
- 21.67 + 88 =
- 22.67 + 15 =
- 23.28 + 75 =
- 24.74 + 72 =
- 25.36 + 48 =
- 26.42 + 51 =
- 27.28 + 38 =
- 28.76 + 64 =
- 29.87 + 32 =
- 30.24 + 23 =
- 31.48 + 44 =
- 32.45 + 83 =
- 33.32 + 18 =
- 34.23 + 72 =
- 35.50 + 65 =
- 36.58 + 51 =
- 37.53 + 51 =
- 38.29 + 85 =
- 39.81 + 26 =
- 40.24 + 51 =
Answer key
- 94
- 134
- 123
- 40
- 131
- 175
- 94
- 80
- 95
- 133
- 66
- 151
- 65
- 101
- 104
- 112
- 72
- 85
- 94
- 96
- 155
- 82
- 103
- 146
- 84
- 93
- 66
- 140
- 119
- 47
- 92
- 128
- 50
- 95
- 115
- 109
- 104
- 114
- 107
- 75
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths