六年级数学下册《期中计算》强化特训归纳!

六年级数学下册《期中计算》强化特训归纳!


简介:
1.怎样简便就怎样算。 0.65x101-65% x+1.6÷ = 0.65x 101-0.65 = 0.6x+1.6x = 0.65x (101- 1) =(0.6+1.6)x = 0.65x 100 =x = 65 = (+)÷ - (93x -15)÷ = x - =(15-15)÷ = - =0÷ = = 0 2.求未知数Ⅹ Ⅹ-75%= 80%-0.4x1.2=1.2 解:25%= 解:=1.68 = =2.1