题目内容

选用适当的方法计算:
41×10.1
37.5+45÷18×2.5
4
5
+
1
4
)÷
7
3
+
7
10
2
3
-
1
3
)×(
8
3
÷
4
5
(1)41×10.1,
=41×(10+0.1),
=41×10+41×0.1,
=410+4.1,
=414.1;

(2)37.5+45÷18×2.5,
=37.5+2.5×2.5,
=37.5+6.25,
=43.75;

(3)(
4
5
+
1
4
)÷
7
3
+
7
10

=
21
20
×
3
7
+
7
10

=
9
20
+
7
10

=
23
20


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

=
10
9
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