题目内容

用你喜欢的方法计算
①375+450÷18×25
19
5
×
1
9
+
1
5
÷9
③[6.85-(0.65+0.7)]÷2.5
3
10
÷(
5
2
-
5
3
)×
5
6
⑤13×(
1
26
+
2
11
)×22
⑥2272-6360÷24.
①375+450÷18×25,
=375+25×25,
=375+625,
=1000;

19
5
×
1
9
+
1
5
÷9,
=
19
5
×
1
9
+
1
5
×
1
9

=
1
9
×(
19
5
+
1
5
),
=
1
9
×4,
=
4
9


③[6.85-(0.65+0.7)]÷2.5;
=[6.85-0.65-0.7]÷2.5,
=5.5÷2.5,
=2.2;

3
10
÷(
5
2
-
5
3
)×
5
6

=
3
10
÷
5
6
×
5
6

=
3
10


⑤13×(
1
26
+
2
11
)×22,
=13×22×(
1
26
+
2
11
),
=13×22×
1
26
+13×22×
2
11

=11+52,
=63;

⑥2272-6360÷24,
=2272-265,
=2007.
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