Question

37✘168-37✘37-37✘31简便运算？

Answer 1

简便计算是直接提取公约数37得

37x(138-37-31)
=37x70
=2590

Answer 2

37×168-37×37-37×31
=37×(168-37-31)
=37×(131-31)
=37×100
=3700

Answer 3

=37*（168-37-31）=37*100=3700

Answer 4

37✕168-37✕37-37✕31
=37(168-37-31)
=37✕100
=3700

Answer 5

37×168-37×37-37×31
＝37×(168-37-31)
＝37×〔168-〔37+31〕〕
＝37×(168-68)
＝37×100
＝3700