Răspuns:
4700-154x25=850
5834-16x94=5270
6632-18x79=5210
8800-26x78=6772
5420-23x85=3465
891-63x4=639
354-35x8=74
900-58x6=552
750-58x3=576
670-75x3=445
900-65x18-550:5=380
669-66:3-29x20=67
6000-22:7-29x70=3966
258+37x8-488:4=432
650x6-200:3+268=4101
(900:3-256)x26=1144
(561-804:4)x23=8280
(505:5-97)x73=293
(654-990:9)x39=21216
(8209-788x6)x2=6962.