题目内容

用你喜欢的方法计算
(1)2÷
4
5
-0.6
(2)(
4
7
-
3
14
)÷
1
28
(3)
1
20
+0.24×6.4÷0.32
(4)93×101
(5)
1
4
×125×
1
25
×8
(6)75%×[(100%-
2
5
)÷25%].
(1)2÷
4
5
-0.6,
=2.5-0.6,
=1.9;

(2)(
4
7
-
3
14
)÷
1
28

=(
4
7
-
3
14
)×28,
=
4
7
×
28-
3
14
×
28,
=16-6,
=10;

(3)
1
20
+0.24×6.4÷0.32,
=
1
20
+1.536÷0.32,
=
1
20
+4.8,
=4.85;

(4)93×101,
=93×100+93×1,
=9300+93,
=9393;

(5)
1
4
×125×
1
25
×8,
=(
1
4
×
1
25
)×(125×8),
=
1
100
×
1000,
=10;

(6)75%×[(100%-
2
5
)÷25%],
=75%×[
3
5
÷25%],
=75%×
12
5

=1.8.
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