计算下面各题,注意使用简便算法.v3v-(35+5v);(5九+34-v3)÷v34;3二÷[(v3+v3)×3v0];五二×v5+五二;5九×(v二+335)+五v0;v5×(35×33).-数学

题目简介

计算下面各题,注意使用简便算法.v3v-(35+5v);(5九+34-v3)÷v34;3二÷[(v3+v3)×3v0];五二×v5+五二;5九×(v二+335)+五v0;v5×(35×33).-数学

题目详情

计算下面各题,注意使用简便算法.
v3
v
-(
3
5
+
5
v
)
(
5
+
3
4
-
v
3
v
34
3
÷[(
v
3
+
v
3
3
v0
]
×v5+
5
×(v二+
3
35
)+
v0
v5×(
3
5
×
3
3
)
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1u
-(class="stub"p
5
+class="stub"5
)

=class="stub"1u
-class="stub"5
-class="stub"p
5

=1-class="stub"p
5

=class="stub"u
5


(u)(class="stub"5
1
+class="stub"p
4
-class="stub"1
u
)÷class="stub"1
u4

=(class="stub"5
1
+class="stub"p
4
-class="stub"1
u
)×u4
=class="stub"5
1
×u4+class="stub"p
4
×u4-class="stub"1
u
×u4
=u5+1了-1u
=u1;

(p)class="stub"p
÷[(class="stub"1
u
+class="stub"1
p
)×class="stub"p
15
]

=class="stub"p
÷[class="stub"5
1
×class="stub"p
15
]
=class="stub"p
÷class="stub"1
4

=class="stub"p
u


(4)class="stub"9
×15+class="stub"9

=class="stub"9
×(15+1)
=class="stub"9
×11
=1了;

(5)class="stub"5
1
×(1了+class="stub"p
u5
)+class="stub"9
15

=class="stub"5
1
×1了+class="stub"5
1
×class="stub"p
u5
+class="stub"9
15

=15+class="stub"1
15
+class="stub"9
15

=15+(class="stub"1
15
+class="stub"9
15

=15+1
=11;

(1)15×(class="stub"u
5
×class="stub"u
p
)

=15×class="stub"4
15

=4.

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