带括号的混合运算（2023-07-12）

带括号的混合运算（2023-07-12）：79+(74-68)= 71+(75-75)= 9×(40÷5)= 20+(29+32)= 64+(30-29)= (70-43)÷3= 49-(54-34)= (55-47)÷2= (37+26)÷9= 20+(99-31)= 25+(36+32)= 5×(64÷8)= 49-(54-34)= (55-47)÷2= (37+26)÷9= 20+(99-31)= 25+(36+32)= 5×(64÷8)= 31+(83-33)= 43-(48-47)= 6×(72÷9)= 24+(80-65)= 5×(81÷9)= 58-(92-86)= 13+(96-63)= 5×(81÷9)= 58-(92-86)= 13+(96-63)= 24+(80-65)= 58-(92-86)= 4×(36÷4)= 19-(97-78)= 5×(35÷7)= 22+(2...