问题
解答题
|
答案
3060÷15-2.5×1.04,
=204-2.6,
=201.4;
×7 5
+2 3
÷14 15
,1 9
=
+14 15
×9,14 15
=
×(1+9),14 15
=
×10,14 15
=
,28 3
=9
;1 3
0.16+4÷(
-3 8
),1 8
=0.16+4÷
,1 4
=0.16+4×4,
=0.16+16,
=16.16;
-[3 7
-(19 5
+14 5
)],4 7
=
-3 7
+19 5
+14 5
,4 7
=(
+3 7
)-(4 7
-19 5
),14 5
=1-1,
=0;
÷[(3 5
+1 5
)÷1 3
]2 9
=
÷(3 5
+3 15
)×5 15
,2 9
=
×3 5
×15 8
,2 9
=
.1 4