问题
解答题
|
答案
(1)0.48+10.8÷0.36×0.54,
=0.48+30×0.54,
=0.48+16.2,
=16.68;
(2)[9.08-(0.61+1.75)]+3.2,
=[9.08-2.36]+3.2,
=6.72+3.2,
=9.92;
(3)
-13 14
÷15 28
+5 8
,1 4
=
-13 14
×15 28
+8 5
,1 4
=
-13 14
+6 7
,1 4
=
+1 14
,1 4
=
;9 28
(4)
÷[(4 5
-3 4
)÷2 3
],5 8
=
÷[4 5
÷1 12
],5 8
=
÷[4 5
×1 12
],8 5
=
÷4 5
,2 15
=
×4 5
,15 2
=6.