123+12=?
12*123=( )
123+12=?
123+12=?
123+123+123+123+123+123+123+123+123+123-123-123-123-123-123=?
1+12+123+1234=?1+12+123+1234=?
12+12-12+1221123-123=
12+12-12-12-12-12+99-21-12-12+789-123-123+789=
123+123+123=
123+123=123+123+123=
123+123-123×123÷123=?
12+123+123
123-12=x 怎么解
12+123+1234+12345+123456+1234567=
123+12+213+23112+231=
923*123+123/123=?
(123-123+123-123+123-123)+0+7+(-7)=?
123/123/123×123+123+123-246=
123+123-147=?