42×60= 231÷3= 600÷5= ☆37×32= ☆840÷8= ☆49×51=
用竖式计算. 28×307= 80﹣34.56= 400÷30=
竖式计算: 34×15= 15.4+7.8= 16.7+6.4=
用竖式计算(带☆的要验算) 95×78= ☆695÷3= ☆42×55= 816÷4= 4.9+5.3= 7.1﹣6.2=
用竖式计算:(带▲的要验算) 58×24= 840÷7= 15.9+3.6= 13,7﹣5.9= 19×68= ▲504÷3=
列竖式计算,带★的验算. 36×18 70﹣52.8 38.8+5.02 315÷4= ★824÷8= ★85×34.