👤

(h:5-5)×9+186:6=400÷10
Afla nr necunoscut
Va rog cat mai repede
Dau coroana


Răspuns :

(h:5-5)×9+186:6=400:10
(h:5-5)×9+31=40
(h:5-5)×9=40-31
(h:5-5)×9=9
h:5-5=9:9
h:5-5=1
h:5=1+5
h:5 =6
h=5×6
h=30