问题
解答题
用递等式计算. (1)(3618÷18-145)×20 (2)16.8-45÷0.9×0.16 (3)
(4)96÷[(
|
答案
(1)(3618÷18-145)×20,
=(201-145)×20,
=56×20,
=1120
(2)16.8-45÷0.9×0.16,
=16.8-50×0.16,
=16.8-8,
=8.8;
(3)
×4 9
+3 20
÷22,11 15
=
+1 15
÷22,11 15
=
+1 15
,1 30
=
;1 10
(4)96÷[(
-5 6
)×2.4+3 4
],3 5
=96÷[
×2.4+1 12
],3 5
=96÷[
+1 5
],3 5
=96÷
,4 5
=120.