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递等式计算:(58+37)÷(64-9×5)95÷(64-45)×101178-145÷5×6+42812-700÷(9+31×11)

题目详情
递等式计算:
(58+37)÷(64-9×5)
95÷( 64-45)×101
178-145÷5×6+42                    
812-700÷(9+31×11)
▼优质解答
答案和解析
(1)(58+37)÷(64-9×5)
=95÷(64-45)
=95÷19
=5;

(2)95÷( 64-45)×101
=95÷19×101
=5×101
=505;

(3)178-145÷5×6+42
=178-29×6+42
=178-174+42
=4+42
=46;

(4)812-700÷(9+31×11)
=812-700÷(9+345)
=812-700÷350
=812-2
=810.