Răspuns:
(589+146):15+(287-269):3=
735:15+18:3=
49+6=55
(307+533):14-85:17+945:21=
840:14-5+45=
60-5+45=
55+45=100
500-200:10+(650+310):12=
500-20+960:12=
500-20+80
480+80=560
22x50-10800:45+(11000-8000):50
1100-240+3000:50
1100-240+60
860+60=920
