竖式二位数口算加减乘除

tgamedetail_ff_2-tgamedetail_ff_1:55.0

tgamedetail_ff_3-tgamedetail_ff_2:1.0

tgamedetail_ff_4-tgamedetail_ff_3:9.0

tgamedetail_ff_5-tgamedetail_ff_4:10.0

tgamedetail_ff_6-tgamedetail_ff_5:6.0

tgamedetail_ff_6-tgamedetail_ff_1:81.0

t10_2-t10_1:8.0

t10_3-t10_2:9.0

t10_4-t10_3:6.0

t10_5-t10_4:8.0

t10_6-t10_5:0.0

t10_6-t10_1:31.0