来自郝迎吉的问题
【怎样简便就怎样计算2.84×99+2.843.6×1016.3÷0.25÷44×0.8×12.5×2.517.5÷0.25×17+13.】
怎样简便就怎样计算
2.84×99+2.84
3.6×101
6.3÷0.25÷4
4×0.8×12.5×2.5
17.5÷0.25×17+13.
1回答
2020-07-15 12:41
【怎样简便就怎样计算2.84×99+2.843.6×1016.3÷0.25÷44×0.8×12.5×2.517.5÷0.25×17+13.】
怎样简便就怎样计算
2.84×99+2.84
3.6×101
6.3÷0.25÷4
4×0.8×12.5×2.5
17.5÷0.25×17+13.
①2.84×99+2.84 =2.84×(99+1)=2.84×100=284; ②3.6×101 =3.6×(100+1)=36×100+36×1=3600+36=3636; ③6.3÷0.25÷4=6.3÷(0.25×4)=6.3÷1=6.3;④4×0.8×12.5×2....