×6<52
5×<32
>>
①43÷7=
②56÷9=
③66÷8=
④533+216=
⑤*875-446=
642÷6= 0.9×99+0.9= 1.25×80= 2.5÷0.01=
÷ = 2﹣ ﹣ = 3﹣ ﹣ = ( ÷ )×30=