把左边的6个○圈出来,把右边的3个○图上颜色。
○○○○○○○○○○
阅读短文,判断正误。
Hello. I am Alice. I am eight. I have a dog. His name is Sam. He is brown. He is very lovely. My mother and I like him. But my father doesn't like him. Sam likes eating meat. I like too.
用四舍五入法,按括号里的要求对下列各数取近似值:
(1)0.65148(精确到千分位); (2)1.5673(精确到0.01); (3)450600(精确到千位)。