repede dau coroana!!! e urgent

Răspuns:
a) (8+19) : 3= 27:3=9
49 : (3+4)=49:7=7
(5:5+5:1) + (30:10)=(1+5) + (30:10) = 6+3=9
b) (28:4-6) × (7×9-60)=(7-6) × (63-60)=1×3=3
(23-12:3×0) + (7×8-4×4)= (23-4×0)+(56-16)=23 + 40=63
100:10×0:7+40:5=10+0+9=19