下面各题怎样算简便就怎样算。(12分)3.71-2.63+2.29-0.37 ×75%+× - [1-(+)]× 答案:【答案】3;;【解析】3.71-2.63+2.29-0.37=(3.71+2.29)-(2.63+0.37)=6-3=3×75%+××(+) -- -[1-(+)]×=[1-(+)]×=[1-]×=× 利用加法交换了和减法的性质以及乘法分配律进行简便计算。 ----Shall we have a discussion about how to spend the coming New Year of 2012? -----______________ A. Your are right. B. Don’t bother me! C. That sounds great D. Have a good time!