19.75×35+64×19.75+19.75,简算
问题描述:
19.75×35+64×19.75+19.75,简算
答
提公因式,提取19.75,得:19.75*(35+64+1)=19.75*100=1975
19.75×35+64×19.75+19.75,简算
提公因式,提取19.75,得:19.75*(35+64+1)=19.75*100=1975