3+5等于几呀

3+5等于几呀 3+5等于几 5^3等于几 5+3等于几 5+3等于几 5除几等于0.25等于4分之几等于3比几等于几折? 3,53×几,8等于5,几几43.53×几.8等于5.几几4 5比3等于几分之几 5分米等于几分之几米?9分米等于几分之几米?3角等于几分之几元?7角等于几分之几元? 1-3等于几呀 5*3等于几呢? -3x>-5等于几? 谁知道3+5等于几? 3乘5等于几 4/5/3等于几 (-3)-10-5等于几 2-3/5等于几 3加5等于几