REPEDEEEE!DAU COROANA

1.200/50=4
4*800=3200
3200/100=32
32*5=160
2.rezolvarea inversa :
300*3=900
900*5=4500
4500/100=45
45/9=5
5*500=2500
verificarea:2500/500=5
5*9=45
45*100=4500
4500:5=900
900/3=300
sper ca te-am ajutat