4.5*80%+80%*5.4+0.08 简便计算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/30 16:57:41
4.5*80%+80%*5.4+0.08简便计算4.5*80%+80%*5.4+0.08简便计算4.5*80%+80%*5.4+0.08简便计算4.5*80%+80%*5.4+0.08=4.5*80%

4.5*80%+80%*5.4+0.08 简便计算
4.5*80%+80%*5.4+0.08 简便计算

4.5*80%+80%*5.4+0.08 简便计算
4.5*80%+80%*5.4+0.08
=4.5*80%+80%*5.4+80%*0.1
=80%*(4.5+5.4+0.1)
=80%*10
=8

你好, 凝箬箬
4.5×80%+80%×5.4+0.08
=4.5×0.8+0.8×5.4+0.08
=45×0.08+0.08×54+0.08
=(45+54+1)×0.08
=100×0.08
=8

原式=(4.5+5.4)*80%+0.08=9.9*80%+0.08=(10-0.1)*80%+0.08=8-0.08+0.08=8