10.75+0.4-9.86简便计算

分类: 作业答案 • 2021-12-19 15:51:46

问题描述：

10.75+0.4-9.86简便计算

答

10.75+0.4-9.86
=10.75+0.4-9.75-0.11
=（10.75-9.75）+（0.4-0.11）
=1+0.29
=1.29

答

=10.75-9.86+0.4
=10.75-10+0.44
=0.75+0.44
=1.19

答

10.75+0.4-9.86
=10.75+0.4-(10-0.14)
=10.75+0.4-10+0.14
=(10.75-10)+(0.4+0.14)
=0.75+0.54
=1.29