193736824358 +7 1 +5 7 +4 7 -7 6 -1 4 -2 9577111952996 -1 8 -5 4 +8 9 -4 9 +4 9 -4 7 585229173362 -2 9 +2 9 +4 5 +5 6 +5 8 +2 8 用竖式计算90-38=56+39=9+87=58-29=67-39=67+26=98-54=8+63=72-17=50-18=口算76-37=54-29=79-64=98-48=64+24=75-55=56-36=67-60=85-50=42-32=55+38=15+56=69-31=93-56=23+32=42-19=71-15=62-56=37-25=50+22=62-48=22+55=46-28=48-26=86-45=70-42=72-54=16+27=43-27=75-33=40-12=83-56=76-37=54-29=79-64=48+35=