👤

dau coroana!!!!dau coroana!!!!dau coroana!!!!​

Dau Coroanadau Coroanadau Coroana class=

Răspuns :

a = (25 - 16) : 9

a = 9 : 9

a = 1

b = 12*35 : 12*24 + 12

b = 420 : 12* 24 + 12

b = 35 * 24 + 12

b = 840 + 12

b = 852

Răspuns:

a) (5²-4²):9=(25-16):9=9:9=1

b) 12·35:12·24+12=420:12·24+12=35·24+12=840+12=852