3.6+6.4x10简算

冉雁垂28203.6x65+64x6.5简便算法 -
隗欣河15075966122 ______ 3.6x65+64x6.5=3.6x65+6.4x65=65x(3.6+6.4)=65x10=650

冉雁垂28203.6*0.4+6.4÷2.5简便记算 -
隗欣河15075966122 ______ 3.6*0.4+6.4÷2.5=3.6x0.4+6.4x0.4=(3.6+6.4)x0.4=10x0.4=4

冉雁垂28204.9x3.6+6.4x3.6 - 3.6x1.3的简便计算 -
隗欣河15075966122 ______ 原式 =6.1x3.6+3.6x4.9-3.6 =(6.1+4.9-1)x3.6 =(11-1)x3.6 =10x3.6 =36 供参考.

冉雁垂28205.4*3.6+64*0.54请告诉我简便方法 -
隗欣河15075966122 ______ 原式=5.4x3.6+6.4x5.4=5.4x(3.6+6.4)=5.4x10=54 供参考.

冉雁垂2820简便计算60.4*3.6 6.4 -
隗欣河15075966122 ______ 简便计算60.4*3.6 6.4 60.4*3.6 6.4 =217.44+6.4 =223.84

冉雁垂2820准确计算:3.5x6.4十3.5x3.6 -
隗欣河15075966122 ______ 3.5x6.4十3.5x3.6=3.5x(6.4+3.6)=3.5x10=35

冉雁垂28209.5+9.5x99怎么简便计算 -
隗欣河15075966122 ______ 9.5+9.5x99=9.5x1+9.5x99=9.5x(1+99)=9.5x100=950 利用的是乘法分配律简便计算

冉雁垂282036+6.4+64+3.6简便计算 -
隗欣河15075966122 ______ 36+6.4+64+3.6简便计算 36+6.4+64+3.6 =(36+64)+(6.4+3.6) =100+10 =110

冉雁垂28200.29x3.6十6.4x0.29,简便算法 -
隗欣河15075966122 ______ 0.29x3.6十6.4x0.29,简便算法0.29x3.6十6.4x0.29=0.29*(3.6+6.4)=0.29*10=2.9

冉雁垂28204.9x6.4+14x0.36 - 6.4x3.5 怎么简算? -
隗欣河15075966122 ______[答案] 4.9x6.4+14x0.36-6.4x3.5 =6.4x(4.9-3.5)+1.4x3.6 =6.4x1.4+1.4x3.6 =1.4x(6.4+3.6) =1.4x10 =14