Răspuns:
[tex]1.)(24+16):4=40:4=10\\\\24:4+16:4=6+4=10\\\\\\2.)123 * 5-15 * 5:3 * 10+ 70:2 =615-250+35=400\\\\\\3.)a*8=65= > a=64:8= > a=8\\\\b:5=28= > b=28*5= > b=140\\\\96:c=2= > c=96:2= > c=48\\\\\\4.)a:(52:4)=(29+1)*4\\\\a:13=120= > a=120*13= > a=1560[/tex]