Question

37×64＋63×64 怎样巧算

Answer 1

=64✘（37+63）
=64✘100
=6400

追答

✘是乘号

Answer 2

=（37+63）✘64=100✘64=6400

Answer 3

64乘(37+63)=64乘100=6400

Answer 4

64×（37+63）=64×100=6400

Answer 5

=64(37+63)
=64×100
=6400