能简便计算的用简便方法计算.1013÷3526×7347×14+0.25×37-14(78+1316)÷131617×512+512÷7515÷[(23+15)×113]12+16+112+120+…

题目简介

能简便计算的用简便方法计算.1013÷3526×7347×14+0.25×37-14(78+1316)÷131617×512+512÷7515÷[(23+15)×113]12+16+112+120+…

题目详情

能简便计算的用简便方法计算.
10
13
÷
35
26
×
7
3
4
7
×
1
4
+0.25×
3
7
-
1
4
7
8
+
13
16
)÷
13
16
1
7
×
5
12
+
5
12
÷
7
5
1
5
÷[(
2
3
+
1
5
)×
1
13
]
1
2
+
1
6
+
1
12
+
1
20
+…
1
90
题型:解答题难度:中档来源:不详

答案

(1)class="stub"10
13
÷class="stub"35
26
×class="stub"7
3

=class="stub"4
7
×class="stub"7
3

=1class="stub"1
3


(2)class="stub"4
7
×class="stub"1
4
+0.25×class="stub"3
7
-class="stub"1
4

=0.25×(class="stub"4
7
+class="stub"3
7
-1),
=0.25×0,
=0;

(3)(class="stub"7
8
+class="stub"13
16
)÷class="stub"13
16

=class="stub"7
8
×class="stub"16
13
+class="stub"13
16
×class="stub"16
13

=1class="stub"1
13
+1,
=2class="stub"1
13


(4)class="stub"1
7
×class="stub"5
12
+class="stub"5
12
÷class="stub"7
5

=class="stub"5
12
×
class="stub"1
7
+class="stub"5
7
),
=class="stub"5
12
×class="stub"6
7

=class="stub"5
14


(5)class="stub"1
5
÷[(class="stub"2
3
+class="stub"1
5
)×class="stub"1
13
],
=class="stub"1
5
÷[class="stub"13
15
×class="stub"1
13
],
=class="stub"1
5
÷class="stub"1
15

=3;

(6)class="stub"1
2
+class="stub"1
6
+class="stub"1
12
+class="stub"1
20
+…class="stub"1
90

=1-class="stub"1
2
+class="stub"1
2
-class="stub"1
3
+class="stub"1
3
-class="stub"1
4
+class="stub"1
4
-class="stub"1
5
…+class="stub"1
9
-class="stub"1
10

=1-class="stub"1
10

=class="stub"9
10

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