问题 解答题
脱式计算
①91-91÷13
②6÷0.5×4
③1-0.125÷
1
8

④(
5
8
+
1
2
)÷25%
答案

①91-91÷13,

=91-7,

=84;

②6÷0.5×4,

=12×4,

=48;

③1-0.125÷

1
8

=1-0.125÷0.125,

=1-1,

=0;

④(

5
8
+
1
2
)÷25%,

=(

5
8
+
1
2
)÷
1
4

=(

5
8
+
1
2
)×4,

=

5
8
×4+
1
2
×4,

=

5
2
+2,

=4

1
2

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