33 x 97 + 99
= 33 x 97 + 33 x 3
= 33 x (97 + 3)
= 33 x 100
= 3300
33x97+99
=33x97+33x3
=33x(97+3)
=33x100
=3300
33 x 97 + 99
= 33 x 97 + 33 x 3
= 33 (97+3)
= 33 x 100
= 3300
33 x 97 + 99
= 33 x 97 + 33 x 3
= 33 x (97 + 3)
= 33 x 100
= 3300
chọn (k) đúng cho mình