问题 解答题
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
答案

(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

单项选择题 A1/A2型题
单项选择题