25x28简便方法
25x28简便方法 =25x4x7 =100x7 =700
25乘28简便方法7种
第七种:25*28=5*5*28=5*(5*28)=5*140=700。
25x28等于多少?
25x28 简便计算 = 25×4×7 = 100×7 = 700
25*28简便方法计算
25x28=25x4x7=100x7=700
25×28简便计算(乘法分配律)
解: 25×28 =25×(20+8)=25×20+25×8 =500+200 =700 (乘法分配律)25×28 =25x4x7 =100x7 =700 (乘法结合律)
简便运算:25×28
25X28=25X4X7=100X7=700
25×28的简便计算是?
25×28 =25×4×7 =100×7 =700 答:先把28分成4×7,再算25×4,再×7就好了,希望能帮助到你。
脱式简算:25x28
脱式简算:25x28 解:25×28 =25×4×7 =100×7 =700
25*28简便计算
25*28=25*4*7=100*7=700
怎样用25×28的简便计算方法计算?
=25x4x7 =100x7 =700 25x28 =25x(20+8)=25x20+25x8 =500+200 =700 25x28 =5x5x28 =5x140 =700 25x28 =(20+5)x28 =20x28+5x28 =560+140 =700 25x28 =25x(30-2)=25x30-25x2 =750-50 =700 25x28 =(30-5)x28 =30x28-5x28 =840-140 =700 25x28 =5x5...