问题 解答题
1
6
+
2
3
+
5
8
)×48
0.7×34%+0.7×66%
答案

(1)(

1
6
+
2
3
+
5
8
)×48,

=

1
6
×48+
2
3
×48+
5
8
×48,

=8+32+30,

=70;

(2)0.7×34%+0.7×66%,

=0.7×(34%+66%),

=0.7×1,

=0.7.

单项选择题
单项选择题