3.56×3.5+0.356×65巧算
问题描述:
3.56×3.5+0.356×65
巧算
答
3.56×3.5+0.356×65=3.56×3.5+3.56×6.5=3.56×(3.5+6.5)=3.56×10=35.6
3.56×3.5+0.356×65
巧算
3.56×3.5+0.356×65=3.56×3.5+3.56×6.5=3.56×(3.5+6.5)=3.56×10=35.6