算式6.62+5.8-0.269使用递等式进行简便计算,过程如下:
6.62+5.8-0.269
=(6.62+5.8)-0.269
=12.42-0.269
=12.151
6.62+5.8-0.269递等式计算能巧算吗?
6.62+5.8-0.269
=12.42-0.269
=12.151
没能巧算,只有一步一步计算
6.62+5.8-0.269
=6.62+5.8-0.27+0.001
=6.62-0.27+5.8+0.001
=6.35+5.8+0.001
=12.151
6.62+5.8-0.269
=12.42-0.269
=12.151