题目内容

脱式计算:
5÷4+5.6×125%+
5
4
÷
5
17

52
5
×(5-
60
13
÷4)+
57
13
(1)5÷4+5.6×125%+
5
4
÷
5
17

=1.25+5.6×1.25+1.25×3.4,
=(1+5.6+3.4)×1.25,
=10×1.25,
=12.5;

(2)
52
5
×(5-
60
13
÷4)+
57
13

=
52
5
×(5-
15
13
)+
57
13

=
52
5
×
50
13
+
57
13

=40+4
5
13

=44
5
13
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