(1)32-512+618;(2)(548-627+415)÷3;(3)23-1+27-(3-1)0;(4)3+13-1-(32-23)(32+23).-数学

题目简介

(1)32-512+618;(2)(548-627+415)÷3;(3)23-1+27-(3-1)0;(4)3+13-1-(32-23)(32+23).-数学

题目详情

(1)
32
-5
1
2
+6
1
8

(2)(5
48
-6
27
+4
15
3

(3)
2
3
-1
+
27
-(
3
-1)0

(4)
3
+1
3
-1
-(3
2
-2
3
)(3
2
+2
3
)
题型:解答题难度:中档来源:不详

答案

(1)原式=4
2
-
5
2
2
+
3
2
2

=4
2
-
2

=3
2

(2)原式=(20
3
-18
3
+4
15
)÷
3

=(2
3
+4
15
)÷
3

=2+4
5

(3)原式=
3
+1+3
3
-1
=4
3

(4)原式=
4+2
3
2
-(18-12)
=2+
3
-6
=-4+
3

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