谁能告诉我769+403简便怎么算啊?
问题描述:
谁能告诉我769+403简便怎么算啊?
答
769+400+3
=1169+3
=1172
谁能告诉我769+403简便怎么算啊?
769+400+3
=1169+3
=1172