巧算 5.25/13.125/4*85.2
巧算 5.25/13.125/4*85.2
5.25/13.125/4*85.2
=5.25÷（13.125×4）×85.2
=5.25÷52.5×85.2
=0.1×85.2
=8.52
0.525/13.125/4*85.85/1.01
啊哈，这个我会。
13.125/0.525 = 25
85.85/1.01 = 85
所以结果等于0.85
5.25÷13.125÷4x85.2怎样简算
5.25÷13.125÷4x85.2
= 5.25÷（13.125 x 4）x85.2
= 5.25 ÷52.5 x85.2
=0.1 x85.2
=8.52
0.525/13.125/4x85.85/1.01简便
0.525/13.125/4x85.85/1.01
=[0.525/(13.125×4)]×(85×1.01)/1.01
=0.525/[13×4+0.125×4)]×85
=0.525/(52+0.5)×85
=0.525/(52.5)×85
=0.01×85
=0.85
912.45÷（13.125×4）怎样巧算
先算括号里..13.125可以写成13又8分之1 即8分之105
乘4 等于2分之105
912.45即912又20分之9 即20分之18249
20分之18249 除 2分之105
等于18249除于1050（可以上下约3 后硬除）
等于17.48
5.25*13.125*4简算
解: 5.25*13.125*4
=5又1/4*13又1/8 *4
=(21/4 * 4)*(13+1/8)
=21*(13+1/8)
=21*13+21/8
=273+2+5/8
=275又5/8
63/5巧算70/8/125巧算
63/5=63x2/5x2=126/10=12.6
70/8/125=70/(8x125)=70/1000=0.07
2000-2000/25*4巧算
2000-2000/25*4
=2000-8*4
=2000-32
=1968
(255*47)/(3*47)巧算
(255*47)/(3*47)
=（255÷3）×（47÷47）
=85×1
=85
1000/4*250能巧算吗
1000÷4×250
=250×250
=125×2×250
=125×500
=62500
