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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+
)÷(1-0.99)
÷
+
×
(
+
×
)×(75%+2
)
8
+
+
+
.
(0.25+
3 |
4 |
1 |
6 |
4 |
3 |
1 |
4 |
1 |
6 |
(
1 |
3 |
2 |
3 |
3 |
4 |
1 |
4 |
8
1 |
8 |
3 |
4 |
7 |
8 |
1 |
4 |
▼优质解答
答案和解析
(1)(0.25+
)÷(1-0.99)
=1÷0.01
=100;
(2)
÷
+
×
=
×
+
×
=(
+
)×
=1×
=
;
(3)(
+
×
)×(75%+2
)
=(
+
)×(0.75+2.25)
=
×3
=
;
(4)8
+
+
+
=8
+
+(
+
)
=9+1
=10.
3 |
4 |
=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 |
1 |
4 |
=(
1 |
3 |
1 |
2 |
=
5 |
6 |
=
5 |
2 |
(4)8
1 |
8 |
3 |
4 |
7 |
8 |
1 |
4 |
=8
1 |
8 |
7 |
8 |
3 |
4 |
1 |
4 |
=9+1
=10.
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