6+?=79,22+?=86,62+?=181
?-24=73,?-18=74,?-65=135
99-?=24,143-?=43,198-?=125
29+76=?,34+125=?,146+164=?
?*?=25,?*?=42,?*?=72
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?-41=135-28,29+43+37+52=?
99-48=?+34,26+51+33-102=?
17+?+88=124,53+72-81-14=?
66+?-31=135,300-73-73-73=?
居高声自远