(348 +594): 6 (912-144): 4 (704-136): 8 (981 – 567) : 9

(348 + 594) : 6 = 942:6 = 157

(912 - 144) : 4 = 768:4 = 192

(704 - 136) : 8 = 568:8 = 71

(981 - 567) : 9 = 414:9 = 46