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计算下面各题(能简便的要用简便方法)(0.25+34)÷(1-0.99)16÷43+14×16(13+23×34)×(75%+214)818+34+78+14.

题目详情
计算下面各题(能简便的要用简便方法) 
(0.25+
3
4
)÷(1-0.99)
1
6
÷
4
3
+
1
4
×
1
6

1
3
+
2
3
×
3
4
)×(75%+2
1
4
)              
8
1
8
+
3
4
+
7
8
+
1
4
▼优质解答
答案和解析
(1)(0.25+
3
4
)÷(1-0.99)
=1÷0.01
=100;

(2)
1
6
÷
4
3
+
1
4
×
1
6

=
1
6
×
3
4
+
1
4
×
1
6

=(
3
4
+
1
4
)×
1
6

=1×
1
6

=
1
6


(3)(
1
3
+
2
3
×
3
4
)×(75%+2
1
4

=(
1
3
+
1
2
)×(0.75+2.25)
=
5
6
×3
=
5
2

              
(4)8
1
8
+
3
4
+
7
8
+
1
4

=8
1
8
+
7
8
+(
3
4
+
1
4

=9+1
=10.