题目内容

能简算的要简算.
98+265+202
3200÷4÷2541×101
375+450÷18×25
4
5
+
1
4
)÷
7
3
+
7
10
①98+265+202,
=98+265+200+2,
=(98+2)+(265+200),
=100+465,
=565;

②3200÷4÷25,
=3200÷(4×25),
=3200÷100,
=32;

③41×101,
=41×(100+1),
=41×100+41×1,
=4100+41,
=4141;

④375+450÷18×25,
=375+625,
=1000;

⑤(
4
5
+
1
4
)÷
7
3
+
7
10

=
21
20
×
3
7
+
7
10

=
9
20
+
7
10

=
23
20
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