Question

45×153-47×52-47的简便计算,怎么写？

45×153-47×52-47的简便计算怎么写？

Answer 1

45×153-47×52-47
=45×153-47×（52+1）
=45×（100+53）-47×53
=4500+45×53-47×53
=4500+53×（45-47）
=4500-106
=4394

Answer 2

45*153-47*(52+1)
=45*(100+53)-47*53
=4500+53*45-47*53
=4500+53*(45-47)
=4500-53*2
=4500-106
=4500-100-6
=4400-6
=4394

Answer 3

45×153－47×52－47
=(47－2)×153－47×52－47
=47×153－47×52－47－306
=47×(153－52－1)－306
=47×100－306
=4700－309
=4391
望采纳，谢谢！

Answer 4

45×153-47×52-47
=45×153-47×52-47×1
=45×153-47×（52+1）
=45×153-47×53
=45×153-（45+2）×53
=45×153-45×53-2×53
=45×（153-53）-106
=45×100-106
=4500-106
=4394

Answer 5

45×153-47×52-47=4394
提公因式先算47×（52+1）=2491
45×153-2491=4394
所以最后结果4394