计算:10-23×10-23[1-(14+38)]÷14(34+12-712)×24(19-5780)÷191724×34+1724÷42-613÷926-23χ÷23=38χ-35χ=12.-数学

题目简介

计算:10-23×10-23[1-(14+38)]÷14(34+12-712)×24(19-5780)÷191724×34+1724÷42-613÷926-23χ÷23=38χ-35χ=12.-数学

题目详情

计算:
10-
2
3
×10-
2
3
[1-(
1
4
+
3
8
)]÷
1
4
3
4
+
1
2
-
7
12
)×24
(19-
57
80
)÷19
17
24
×
3
4
+
17
24
÷4
2-
6
13
÷
9
26
-
2
3
χ÷
2
3
=
3
8
χ-
3
5
χ=12.
题型:解答题难度:中档来源:不详

答案

(1)10-class="stub"2
3
×10-class="stub"2
3

=10-class="stub"20
3
-class="stub"2
3

=10-(class="stub"20
3
+class="stub"2
3
),
=10-7class="stub"1
3

=2class="stub"2
3


(2)[1-(class="stub"1
4
+class="stub"3
8
)]÷class="stub"1
4

=[1-class="stub"5
8
class="stub"1
4

=class="stub"3
8
÷class="stub"1
4

=class="stub"3
2


(3)(class="stub"3
4
+class="stub"1
2
-class="stub"7
12
)×24,
=class="stub"3
4
×24+class="stub"1
2
×24-class="stub"7
12
×24,
=18+12-14,
=16;

(4)(19-class="stub"57
80
)÷19,
=(19-class="stub"57
80
)×class="stub"1
19

=19×class="stub"1
19
-class="stub"57
80
×class="stub"1
19

=1-class="stub"3
80

=class="stub"77
80


(5)class="stub"17
24
×class="stub"3
4
+class="stub"17
24
÷4,
=class="stub"17
24
×class="stub"3
4
+class="stub"17
24
×class="stub"1
4

=(class="stub"3
4
+class="stub"1
4
)×class="stub"17
24

=1×class="stub"17
24

=class="stub"17
24


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

(7)χ÷class="stub"2
3
=class="stub"3
8

χ÷class="stub"2
3
×class="stub"2
3
=class="stub"3
8
×class="stub"2
3

x=class="stub"1
4


(8)χ-class="stub"3
5
χ=12,
class="stub"2
5
x=12,
class="stub"2
5
x÷class="stub"2
5
=12÷class="stub"2
5

x=30.

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