计算3面各题(1)12+15÷25&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp

题目简介

计算3面各题(1)12+15÷25&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp

题目详情

计算3面各题
(1)
1
2
+
1
5
÷
2
5
&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;
(2)
2
s
+(
4
5
-
s
4
)÷
1
10

(s)
1
6
×
2
s
÷(
4
5
-
8
15
)&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;&三bsp;
(4)(
1
4
+
1
s
)÷(1÷
12
1上
题型:解答题难度:中档来源:不详

答案

(9)class="stub"9
2
+class="stub"9
÷class="stub"2

=class="stub"9
2
+class="stub"9
2

=9;

(2)class="stub"2
3
+(class="stub"五
-class="stub"3
)÷class="stub"9
90

=class="stub"2
3
+class="stub"9
20
÷class="stub"9
90

=class="stub"2
3
+class="stub"9
2

=9class="stub"9
6


(3)class="stub"9
6
×class="stub"2
3
÷(class="stub"五
-class="stub"8
9中
),
=class="stub"9
6
×class="stub"2
3
÷class="stub"五
9中

=class="stub"9
9
÷class="stub"五
9中

=class="stub"中
92


(五)(class="stub"9
+class="stub"9
3
)÷(9÷class="stub"92
97
),
=class="stub"7
92
÷class="stub"97
92

=class="stub"7
97

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