问题
填空题
①18.25+6.2+1.75=6.2+(______+______).
②19.2-6.8-3.2=(______)-(______+______)
答案
(1)18.25+6.2+1.75,
=6.2+(18.25+1.75);
(2)19.2-6.8-3.2,
=19.2-(6.8+3.2);
故答案为:18.25,1.75,19.2,6.8,3.2.
①18.25+6.2+1.75=6.2+(______+______).
②19.2-6.8-3.2=(______)-(______+______)
(1)18.25+6.2+1.75,
=6.2+(18.25+1.75);
(2)19.2-6.8-3.2,
=19.2-(6.8+3.2);
故答案为:18.25,1.75,19.2,6.8,3.2.