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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+445-327 | 12×(120-910÷13) | 330-65÷13-50 |
128-6×8÷16 | 64×(12+6513) | 720-6×(12+8) |
137+26×7÷13 | (83+27)×(37-18) | (280-140)÷5×7 |
80×50-35÷5 | 25×14÷35 | 630÷[(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.
=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.
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