spune ce greseli sau facut in urmatoarele rezolvari apoi rezolva corect.

a.8+1:1+8=9:9=1

b.36:2x3=36:6=6

c.12-10:2=2:2=1

d.9+1x9:9=9+9:9=18:9=2

pls la mate ajutatima am 9 ani!!!