"82-68等于多少"...82-68等于多少
"82-63等于几"...82-63等于几
"82+63等于几"...82+63等于几
"82-61等于几"...82-61等于几
"82+6等于几"...82+6等于几
"82-62等于几"...82-62等于几
"82-78等于几"...82-78等于几
"82-65等于几"...82-65等于几
"82+78等于几"...82+78等于几
"82-82等于几"...82-82等于几
