66x225十34x175的简便计算
66x23十23X34怎么简便计算? -
解：66×23+23×34 =（66+34）×23 =100×23 =2300
=25x66十34x25 =25×（66+34）25×100 =2500
解：66×23+23×34 =（66+34）×23 =100×23 =2300
=25x66十34x25 =25×（66+34）25×100 =2500
66X13+34X13 =(66+34)X13 =100X13 =1300
解.69x22+34x23 =3x23x22+34x23 =23x(66+34) =23x100
25x34十75x34怎么用简便方法 -
25x34十75x34 =（25+75）×34 =100×34 =3400
54Ⅹ68十34x92怎么用简便方法算？3 672+34x92=6800
25x34十75x34怎么用简便方法 -
25x34十75x34 =（25十75）x34 =100x34 =3400
原式=52x(66+34)=52x100 =5200 供参考。
76x34十75x66简单计算方法? -
76x34十75x66 =(75+1)x34+75x66 =75x34+1x34+75x66 =75x(34+66)+1x34 =75x100+34 =7500+34 =7534。
简便算法，乘法分配律的反用：27×34+66×27 =27×(34+66)=27×100 =2700 乘法分配律是指两个数的和与一个数相乘，可以先把它们分别与这个数相乘，再相加，叫做乘法分配律。