问题 解答题
脱式计算;
6760÷13+17×25
24×[(
5
6
-
2
3
)×3]
3.5÷[1.4×(0.1-0.05)]
1
4
+[
7
8
-(
3
4
+
1
8
)].
答案

(1)6760÷13+17×25,

=520+425,

=945;

(2)24×[(

5
6
-
2
3
)×3],

=24×[

1
6
×3],

=24×

1
2

=12;

(3)3.5÷[1.4×(0.1-0.05)],

=3.5÷[1.4×0.05],

=3.5÷0.07,

=50;

(4)

1
4
+[
7
8
-(
3
4
+
1
8
)],

=

1
4
+[
7
8
-
7
8
],

=

1
4
+0,

=

1
4

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