问题 解答题
(1)2865+1495÷23
(2)5.4×(8.5-0.25)
(3)
5
11
×[﹙
2
5
1
3
﹚÷
5
6
].
答案

(1)2865+1495÷23,

=2865+65,

=2930;

(2)5.4×(8.5-0.25),

=5.4×8.25,

=44.55;

(3)

5
11
×[﹙
2
5
1
3
﹚÷
5
6
],

=

5
11
×[
11
15
÷
5
6
],

=

5
11
×
11
15
×
6
5

=

1
3
×
6
5

=

2
5

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