Question

请问下面有…这道题简便运算方法怎么算？

Answer 1

864+[18X(356-89)]
=864+{18X[356-(100-11)]}
=864+{(20-2)X[356-100+11]}
=864+{(20-2)X[256+11]}
=864+{(20-2)X267}
=864+{5340-534}
=864-534+5340
=330+5340
=5670

Answer 2

864+［18×（356-89）］
=18×48+［18×（356-89）］
=18×（48+356-89）
=18×315
=5670

Answer 3

864+[18×(356-89)]
=864+18×267
=864+(20-2)×267
=864+20×267-2×267
=864+5340-534
=(864-534)+5340
=330+5340
=5670

Answer 4

864+〔18×(356-89)〕
=864+〔18×(356-100+11)〕
=864+〔18×(256+11)〕
=864+〔(20-2)×267〕
=864+5340-534
=5340+330
=5670

Answer 5