Question

8.59-4.1×0.9-4.49怎样简便运算

Answer 1

根据题意，这道题的简便计算方法是，原式等于：8.59—4.49—4.1×（1—0.1）=4.1—（4.1—0.41）=4.1—4.1+0.41=0.41

Answer 2

8.59-4.41×0.9-4.49
=(8.59-4.49)-4.41×1+4.41×0.1
=4.1-4.41+0.441
=4.541-4.41
=0.131