·75x46-46x28用简便方法计算
·75x46-46x28用简便方法计算
·75x46-46x28
=(75-28)x46
=2162
乘法分配律
用简便方法计算46x28+73x46-46
46x28+73x46-46
=46×(28+73-1)
=46×100
=4600
用简便方法计算28x46-46×8
用简便方法计算
28x46-46×8
=46×(28-8)
=46×20
=920
用简便方法计算46x46/17
=(51-5)*46/17
=3*46-5*46/17
=138-5*(51-5)/17
=138-15+25/17
=123+1+8/17
124又8/17
80x27十40x46用简便方法计算
80x27十40x46
=40x2x27十40x46
=40x(2x27+46)
=40x100
=4000
用简便方法计算333x46十666x27
333x46十666x27
=333x46十333x2x27
=333x(46+54)
=333x100
=33300
用简便方法计算简132x46-46x32
132x46-46x32
=(132-32)x46
=100x46
=4600
用简便方法计算109x46一9x46
109x46-9x46
=(109-9)x46
=100x46
=4600
用简便方法计算28x92十46x44二
28x92+46x44
=28x92+(46x2)x22
=28x92+92x22
=92x(28+22)
=92x50
=4600
用简便方法计算如713X46一613x46
713×46-613×46
=(713-613)×46
=100×46
=4600
2020-07-03 广告