1+123456=?
123456+1=
123456-23456-1+123456+4-1234567=?
123456+123456+123456+123456=?
为什么123456-1=123455
1+2+3.+123456=?
12345×123456=?123456×1234567=?
1+12+123+1234+12345+123456+123456789=?
1+12+123+124+12345+123456+12467+13457+13467910=?
123456×1+1929×64-1286×96=______.
123456+234567=
123456+654321=?