37+67-27+67巧算=(37-27)x67=10x67=670
37+67-27+67=37-27+67+67=10+67+67=144
(37-27)+(70-3)*2=(37-27)+70*2-3*2=10+140-6=150-6=144
(30+60-20+60)+(7+7-7+7)=130+14=144