(1)30﹣7.6= (2)7.8+5.2= (3)23×13=(4)836÷4= (5)38×24= (6)☆422÷7=
;
计算:÷14=÷24=÷26=÷35=
18÷2=÷3=÷4=÷8=
计算:××;×12×;××;××;
××=