Question

Номер 668 первый столбик

Answer 1

$9^{2} + 19= 81+ 19= 100$
$17^{2}- 209= 289 - 209 = 80$
$6^{2}: 3 = 36: 3= 12$
$2^{3}* 3^{2} = 16 * 9 =144$