问题 解答题
用适当的方法解答下题
4.85×0.17+0.485×8.3
4
11
×87.5+12.5×
4
11
-4÷11
答案

(1)4.85×0.17+0.485×8.3,

=0.485×1.7+0.485×8.3,

=0.485×(1.7+8.3),

=0.485×10,

=4.85;

(2)

4
11
×87.5+12.5×
4
11
-4÷11,

=

4
11
×87.5+12.5×
4
11
-
4
11

=

4
11
×(87.5+12.5-1),

=

4
11
×99,

=36.

单项选择题
单项选择题 A3/A4型题