Question

Calculeaza bine dau coroana​

Answer 1

Răspuns:

$5 \sqrt{?} 5b + 1$

Answer 2

$\sqrt{5 \times \sqrt{25 = 5} }$

$\sqrt{7 \times \sqrt{49 = 7} }$

$\sqrt{9 \times \sqrt{16 = 6} }$

$= > 5 + 7 - 6 = 6$