问题
解答题
|
答案
(1)
÷0.6×18 35 2 3
=
×18 35
×5 3 2 3
=
;4 7
(2)
÷9+5 17
×1 9 12 17
=
×5 17
+1 9
×1 9 12 17
=
×(1 9
+5 17
)12 17
=
;1 9
(3)2-
÷6 13
-9 26 2 3
=2-
-4 3 2 3
=2-(
+4 3
)2 3
=2-2
=0;
(4)(15-14×
)×4 7 8 21
=(15-8)×8 21
=7×8 21
=
;8 3
(5)87×3 86
=(86+1)×3 86
=86×
+3 86 3 86
=3
;3 86
(6)
÷[(4 5
+1 3
)×2 5
]4 11
=
÷[4 5
×11 15
]4 11
=
÷4 5 4 15
=3.