题目内容

递等式计算(带▲的要简算)
8470-104×65
▲3.64÷4+4.36×0.25
1
3
÷(
2
3
-
2
5
)×
3
5

(1)8470-104×65,
=8470-6760,
=1710;

(2)3.64÷4+4.36×0.25,
=3.64×0.25+4.36×0.25,
=(3.64+4.36)×0.25,
=8×0.25,
=2;

(3)
1
3
÷(
2
3
-
2
5
)×
3
5

=
1
3
÷
4
15
×
3
5

=
5
4
×
3
5

=
3
4
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