用竖式算一算。1.2-0.3= 1.4+0.8= 6.2+3.8= 8.4+1.9= 6.8-3.4=
;
计算:÷14=÷24=÷26=÷35=
18÷2=÷3=÷4=÷8=
计算:××;×12×;××;××;
××=