Question

76×64+78×54,简便算法怎么算？

Answer 1

76×64十78x56
＝（78一2）x64＋78x56
＝78×64十78x56一2x64
＝78x（64十56丿一128
＝78x100一128
＝7800一128
＝7672厂

Answer 2

=76×（54+10）十78×54
=76×54十760十78×54
=54X（76+78）+760
=54X154十760=8316+760=9076