问题
解答题
A=
|
答案
A=11×77+12×78+13×79+14×80 11×76+12×77+13×78+14×79
=12×(77+78+79+80)-77+79+160 12×(76+77+78+79)-76+78+158
=12×314+162 12×30+160
=12×(314+13.5) 12×(310+13.33)
=327.5 323.33
100A=100×
=327.5 323.33
≈101.332750 323.33
100A的整数部分是101.
故答案为:101.