得数是奇数还是偶数?
直接写出得数.×60= 12÷= 3.14×42= ()2=×= += ÷= ÷=
直接写得数.×4= += += ÷=25÷= ﹣= ÷5= ×=2÷= ﹣= ×12= 2﹣﹣=
口算= = = == = = =
直接写出得数.= = 11= == 0÷1.2= = == = = =12= = = 54=
直接写出得数×= ×= ×18= ÷8=6÷= ××= ÷= ÷=÷÷= 0.25+= ﹣= ÷×=÷= ×= 8﹣4÷= ﹣=÷14= 12×(﹣)= 5%×5= +++=3.75+= 63%﹣27%= (1﹣20%)÷20%= 0.4÷=×1.8= ×25%=