计算.1-25-2579-(16+29)1719+25-171978-112+1649+513+813+5956-(13+310).-数学

题目简介

计算.1-25-2579-(16+29)1719+25-171978-112+1649+513+813+5956-(13+310).-数学

题目详情

计算.
1-
2
5
-
2
5
7
9
-(
1
6
+
2
9
17
19
+
2
5
-
17
19
7
8
-
1
12
+
1
6
4
9
+
5
13
+
8
13
+
5
9
5
6
-(
1
3
+
3
10
)
题型:解答题难度:中档来源:不详

答案

(1)1-class="stub"2
5
-class="stub"2
5

=class="stub"3
5
-class="stub"2
5

=class="stub"1
5


(2)class="stub"7
9
-
class="stub"1
6
+class="stub"2
9
),
=class="stub"7
9
-class="stub"2
9
-class="stub"1
6

=class="stub"5
9
-class="stub"1
6

=class="stub"10
18
-class="stub"3
18

=class="stub"7
18


(3)class="stub"17
19
+class="stub"2
5
-class="stub"17
19

=class="stub"17
19
-class="stub"17
19
+class="stub"2
5

=0+class="stub"2
5

=class="stub"2
5


(4)class="stub"7
8
-class="stub"1
12
+class="stub"1
6

=[24×(class="stub"7
8
-class="stub"1
12
+class="stub"1
6
)]÷24,
=[24×class="stub"7
8
-24×class="stub"1
12
+24×class="stub"1
6
]÷24,
=[21-2+4]÷24,
=class="stub"23
24


(5)class="stub"4
9
+class="stub"5
13
+class="stub"8
13
+class="stub"5
9

=(class="stub"4
9
+class="stub"5
9
)+(class="stub"5
13
+class="stub"8
13
),
=1+1,
=2;

(6)class="stub"5
6
-(class="stub"1
3
+class="stub"3
10
),
=class="stub"25
30
-
class="stub"10
30
+class="stub"9
30
),
=class="stub"25
30
-
class="stub"19
30

=class="stub"1
5

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