题目内容

能简算的要简算:
1
4
×3
1
4
+0.25×6
3
4
95.6×27-17×95
3
5
1.21×42-(4.46+
7
50
)
1+45%÷0.9-
7
8
(1-
3
4
×
2
5
)÷(
1
4
+
3
8
)
(1)
1
4
×3
1
4
+0.25×6
3
4

=
1
4
×(3
1
4
+6
3
4
),
=
1
4
×10,
=
5
2


(2)95.6×27-17×95
3
5

=95.6×(27-17),
=95.6×10,
=956;

(3)1.21×42-(4.46+
7
50
),
=1.21×42-4.6,
=47.04-4.6,
=42.44;

(4)1+45%÷0.9-
7
8

=1+0.5-0.875,
=1.5-0.875,
=0.625;

(5)(1-
3
4
×
2
5
)÷(
1
4
+
3
8
),
=(1-
3
10
)÷
5
8

=
7
10
×
8
5

=
28
25
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