问题 解答题

[2008-(8.5×8.5-1.5×1.5)÷10]÷30+3.3.

答案

[2008-(8.5×8.5-1.5×1.5)÷10]÷30+3.3,

=[2008-(72.25-2.25)÷10]÷30+3.3,

=[2008-70÷10]÷30+3.3,

=[2008-7]÷30+3.3,

=2001÷30+3.3,

=66.7+3.3,

=70.

单项选择题
单项选择题