(13×5)×6用简便方法怎么算拖式计算
(13×5)×6用简便方法怎么算拖式计算
(13×5)×6
=13×(5×6)
=13×30
=390
2.05×8.5简便方法怎么做拖式计算
2.05×8.5
=(2+0.05)×8.5
=2×8.5+0.05×8.5
=17+0.425
=17.425
1999+199.9+19.99+1.9992.111用简便方法拖式计算
1999+199.9+19.99+1.999+2.111
=(1999+1)+(199.9+0.1)+(19.99+0.01)+(1.999+0.001)
=2000+200+20+2
=2222
拖式简便方法计算大全
125×27×8
48×35×2×35
458+251+749
196-26-74
8400÷25÷4
46×32+46×68
94×99+94
101×482-482
16×29+16×48+16×23
67×53-67×43
15×(9+10+8)
(6+8)×25
7.2×3.9+72×0.61的简便方法拖式计算
7.2×3.9+72×0.61
=72x0.39+72x0.61
=72x(0.39+0.61)
=72x1
=72
950-278-322拖式计算简便
950-278-322
=950-(278+322)
=950-600
=350
480÷6÷5用简便方法计算,列式!
480÷6÷5
=80÷5
=16
或
=480÷(6×5)
=480÷30
=16
38.2*9.6*22.8的简便拖式计算
8361.216
-
解析:
直接计算即可
38.2×9.6×22.8
=366.72×22.8
=8361.216
724×5 169÷13用简便方法计算
724×5
=724×10÷2
=7240÷2
=3620
169÷13
=117÷13+52÷13
=9+4
=13
38.67加68.23筒便方法 拖式计算
38+68+(0.67+0.23)=