Question

32➕63✖️31➖123怎么简便计算？

Answer 1

32 +63x31 -123
=31+ 63x31 -122
【前蠢笑模两带缓项提取31】升历
=31x(1+63) -122
=31x64-122
=31x8xx8-122
=248x8-122
=1984-122
=1862

Answer 2

31＋1＋笑大旅63x31－碰凳124＋1
等于仿肢31＋2＋63x31－4x31
(63-3)x31+2
就可以得出答案了

Answer 3

32+63×31-123
＝32+63×(30+1)-123
＝旁尘32+1890+63-123
＝32+1890-(123-63)
＝32+1890-60
＝运猜禅32+(1890-60)
＝32+1830
＝兆念1862