Question

1 si 2 dau coroana prooomit​

Answer 1

Răspuns:

Explicație pas cu pas:

calculam paranteza patrata, in ordinea-paranteze rotunde, apoi inmultiri/impartiri si la sfarsit adunari/scaderi:

3*(9000-8993)=3*7=21

(5391-5310):9=81:9=9

[21+9]:5=30:5=6

35*35=1225

si la final

1890+6-1225=1896-1225=671

2.

164:4=41

[(624+41-b):6]*3=554-254

[(624+41-b):6]*3=300 /:3

[(624+41-b):6]=100/ *6

(624+41-b)=600

b=624+41-600

b=65