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递等式计算:273+155+445-32712×(120-910÷13)330-65÷13-50128-6×8÷1664×(12+6513)720-6×(12+8)137+26×7÷13(83+27)×(37-18)(280-140)÷5×780×50-35÷525×14÷35630÷[(847-217)÷30].

题目详情
递等式计算:
273+155+445-32712×(120-910÷13)330-65÷13-50
128-6×8÷1664×(12+6513)720-6×(12+8)
137+26×7÷13(83+27)×(37-18)(280-140)÷5×7
80×50-35÷525×14÷35630÷[(847-217)÷30].
▼优质解答
答案和解析
(1)273+155+445-327
=273+(155+455)-327
=273+600-327
=873-327
=546;

(2)12×(120-910÷13)
=12×(120-70)
=12×50
=600;

(3)330-65÷13-50
=330-5-50
=325-50
=275;

(4)128-6×8÷16
=128-48÷16
=128-3
=125;

(5)64×(12+6513)
=64×6525
=43352100;

(6)720-6×(12+8)
=720-6×20
=720-120
=600;

(7)137+26×7÷13
=137+182÷13
=137+14
=151;

(8)(83+27)×(37-18)
=110×19
=2090;

(9)(280-140)÷5×7
=140÷5×7
=28×7
=196;

(10)80×50-35÷5
=4000-7
=3993;

(11)25×14÷35
=350÷35
=10;

(12)630÷[(847-217)÷30]
=630÷[630÷30]
=630÷21
=30.