用简便方法计算:(3.75+4.1+2.35)×9.8
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/25 08:06:56
用简便方法计算:(3.75+4.1+2.35)×9.8用简便方法计算:(3.75+4.1+2.35)×9.8用简便方法计算:(3.75+4.1+2.35)×9.8原式=(3.75+2.35+4.1)×
用简便方法计算:(3.75+4.1+2.35)×9.8
用简便方法计算:(3.75+4.1+2.35)×9.8
用简便方法计算:(3.75+4.1+2.35)×9.8
原式=(3.75+2.35+4.1)×(10-0.2)
=(3+2+4+0.75+0.35+0.1)×(10-0.2)
=(9+1.2)×(10-0.2)
=(10+0.2)×(10-0.2)
=10×10-0.2×0.2
=100-0.04
=99.96