问题
解答题
|
答案
(1)4768-5768÷56×27,
=4768-5768÷56×27,
=4768-103×27,
=4768-2781,
=1987;
(2)(0.51÷1.7+4.2)×4.5,
=(0.3+4.2)×4.5,
=4.5×4.5,
=20.25;
(3)
÷5 6
+5 8
×3 8
,4 9
=
+4 3
,1 6
=
;3 2
(4)
÷[7 16
×(9 14
-5 6
)],4 9
=
÷[7 16
×9 14
],7 18
=
÷7 16
,1 4
=
.7 4