2pls

6

Quỳ xuống

100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000x90000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000=?

9000x10000000000000=?

hoa

100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000x2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Hay quá 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000đ

a, 79+34-19

=79-19+34

=60+34

=94

b) 221 x (43 – 39)

=221x4

=884

6078