计算,能简算的要简算.6.12+37+2.88+472924-(524-49)715+712+815-7121511-38-5856+79+3858-25+141415-(23-15)1920+(45

题目简介

计算,能简算的要简算.6.12+37+2.88+472924-(524-49)715+712+815-7121511-38-5856+79+3858-25+141415-(23-15)1920+(45

题目详情

计算,能简算的要简算.
6.12+
3
7
+2.88+
4
7
29
24
-(
5
24
-
4
9
)
7
15
+
7
12
+
8
15
-
7
12
15
11
-
3
8
-
5
8
5
6
+
7
9
+
3
8
5
8
-
2
5
+
1
4
14
15
-(
2
3
-
1
5
)
19
20
+(
4
5
-
7
40
)
题型:解答题难度:中档来源:不详

答案

(1)6.12+class="stub"3
7
+2.88+class="stub"4
7

=(6.12+2.88)+(class="stub"3
7
+class="stub"4
7
),
=9+1,
=10;

(2)class="stub"29
24
-(class="stub"5
24
-class="stub"4
9
),
=class="stub"29
24
-class="stub"5
24
+class="stub"4
9

=1+class="stub"4
9

=1class="stub"4
9


(3)class="stub"7
15
+class="stub"7
12
+class="stub"8
15
-class="stub"7
12

=(class="stub"7
15
+class="stub"8
15
)+(class="stub"7
12
-class="stub"7
12
),
=1+0,
=1;

(4)class="stub"15
11
-class="stub"3
8
-class="stub"5
8

=class="stub"15
11
-(class="stub"3
8
+class="stub"5
8
),
=class="stub"15
11
-1,
=class="stub"4
11


(5)class="stub"5
6
+class="stub"7
9
+class="stub"3
8

=class="stub"60
72
+class="stub"56
72
+class="stub"27
72

=class="stub"143
72


(6)class="stub"5
8
-class="stub"2
5
+class="stub"1
4

=class="stub"25
40
-class="stub"16
40
+class="stub"10
40

=class="stub"19
40


(7)class="stub"14
15
-(class="stub"2
3
-class="stub"1
5
)

=class="stub"14
15
-class="stub"7
15

=class="stub"7
15


(8)class="stub"19
20
+(class="stub"4
5
-class="stub"7
40
)

=class="stub"19
20
-class="stub"25
40

=class="stub"13
40

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