Question

2.22×99+6.66×6.7怎么简算？

Answer 1

2.22×99+6.66×67怎么简算？
2.22×99+6.66×67
=2.22*3*33+6.66*67
=6.66*33+6.66*67
=6.66*（33+67）
=6.66*100
=666