X+16x=7x:25=2:3.529+12÷45+38813÷7+17×6132-613÷926-23125×(56+34)+45.-六年级数学

题目简介

X+16x=7x:25=2:3.529+12÷45+38813÷7+17×6132-613÷926-23125×(56+34)+45.-六年级数学

题目详情

X+
1
6
x=7
x:
2
5
=2:3.5
2
9
+
1
2
÷
4
5
+
3
8
8
13
÷7+
1
7
×
6
13
2-
6
13
÷
9
26
-
2
3
12
5
×(
5
6
+
3
4
)+
4
5
题型:解答题难度:中档来源:不详

答案

(1)x+class="stub"1
6
x=7,
class="stub"7
6
x=7,
class="stub"7
6
x÷class="stub"7
6
=7÷class="stub"7
6

x=6;

(2)x:class="stub"2
5
=2:3.5,
3.5x=class="stub"2
5
×2,
3.5x=class="stub"4
5

3.5x÷3.5=class="stub"4
5
÷3.5,
x=class="stub"8
35


(3)class="stub"2
9
+class="stub"1
2
÷class="stub"4
5
+class="stub"3
8

=class="stub"2
9
+class="stub"5
8
+class="stub"3
8

=class="stub"2
9
+(class="stub"5
8
+class="stub"3
8
),
=class="stub"2
9
+1,
=1class="stub"2
9



(4)class="stub"8
13
÷7+class="stub"1
7
×class="stub"6
13

=class="stub"8
13
×class="stub"1
7
+class="stub"1
7
×class="stub"6
13

=(class="stub"8
13
+class="stub"6
13
)×class="stub"1
7

=class="stub"14
13
×class="stub"1
7

=class="stub"2
13


(5)2-class="stub"6
13
÷class="stub"9
26
-class="stub"2
3

=2-class="stub"6
13
×class="stub"26
9
-class="stub"2
3

=2-class="stub"4
3
-class="stub"2
3

=2-(class="stub"4
3
+class="stub"2
3
),
=2-2,
=0;

(6)class="stub"12
5
×(class="stub"5
6
+class="stub"3
4
)+class="stub"4
5

=class="stub"12
5
×class="stub"5
6
+class="stub"12
5
×class="stub"3
4
+class="stub"4
5

=2+class="stub"9
5
+class="stub"4
5

=2+(class="stub"9
5
+class="stub"4
5
),
=2+2class="stub"3
5

=4class="stub"3
5

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