6.5 减(1.6除以5减0.12)有简便算法吗

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/30 10:42:26
6.5 减(1.6除以5减0.12)有简便算法吗

6.5 减(1.6除以5减0.12)有简便算法吗
6.5 减(1.6除以5减0.12)有简便算法吗

6.5 减(1.6除以5减0.12)有简便算法吗
6.5-(1.6÷5-0.12)
=6.5-(0.4*4÷5-0.12)
=6.5-(0.4*0.8-0.12)
=6.5-(0.32-0.12)
=6.5-0.2
=6.3