下面各题怎样算简便就怎样算:①14+34÷3②24÷0.8÷25③34×813+813÷4④2-712÷78-13⑤0.2-(12-16)×35⑥(0.6+310)÷(1-110).-数学

题目简介

下面各题怎样算简便就怎样算:①14+34÷3②24÷0.8÷25③34×813+813÷4④2-712÷78-13⑤0.2-(12-16)×35⑥(0.6+310)÷(1-110).-数学

题目详情

下面各题怎样算简便就怎样算:
1
4
+
3
4
÷3
24÷0.8÷
2
5
3
4
×
8
13
+
8
13
÷4

2-
7
12
÷
7
8
-
1
3
0.2-(
1
2
-
1
6
3
5
(0.6+
3
10
)÷(1-
1
10
)
题型:解答题难度:中档来源:不详

答案

class="stub"1
4
+class="stub"3
4
÷3

=class="stub"1
4
+class="stub"1
4

=class="stub"1
2


24÷0.8÷class="stub"2
5

=30÷class="stub"2
5

=75;

class="stub"3
4
×class="stub"8
13
+class="stub"8
13
÷4

=class="stub"3
4
×class="stub"8
13
+class="stub"8
13
×class="stub"1
4

=(class="stub"3
4
+class="stub"1
4
)×class="stub"8
13

=1×class="stub"8
13

=class="stub"8
13


2-class="stub"7
12
÷class="stub"7
8
-class="stub"1
3

=2-class="stub"2
3
-class="stub"1
3

=2-(class="stub"2
3
+class="stub"1
3
),
=2-1,
=1;

0.2-(class="stub"1
2
-class="stub"1
6
)×class="stub"3
5

=0.2-class="stub"1
3
×class="stub"3
5

=0.2-class="stub"1
5

=0;

(0.6+class="stub"3
10
)÷(1-class="stub"1
10
)

=0.9÷0.9,
=1.

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