问题
解答题
用递等式计算. (1)370×203-19266÷38 (2)32×3.1+1÷1.25 (3)
(4)(9-3.06÷
(5)(3-1
(6)[(
|
答案
(1)370×203-19266÷38,
=75110-507,
=74603;
(2)32×3.1+1÷1.25,
=9.92+0.8,
=10.72;
(3)
×(39÷35)÷0.9,21 26
=
×21 26
÷0.9,39 35
=0.9÷0.9,
=1;
(4)(9-3.06÷
)×13 5
,3 13
=(9-5.1)×1
,3 13
=3.9×1
,3 13
=4.8;
(5)(3-1
+11 8
)×11 7
-38 13
×56,1 56
=3×56-1
×56+11 8
×56,1 7
=168-49+64,
=119+64,
=183;
(6)[(
+0.075)÷37 40
-23 25
]×17 24
,2 15
=[1÷
-23 25
]×17 24
,2 15
=[
-225 3
]×17 24
,2 15
=
×135 24
,2 15
=
.3 4