题目:
4.50202…是___小数,用简便写法记作___,保留整数约是___,保留两位小数约是___.
答案
循环,4.5,5,4.50.
解析
解:(1)4.50202…是循环小数; (2)4.50202…记作:4.5; (3)4.5≈5; (4)4.5≈4.50. 故答案为:循环,4.5,5,4.50.
题目:
4.50202…是___小数,用简便写法记作___,保留整数约是___,保留两位小数约是___.
循环,4.5,5,4.50.
解:(1)4.50202…是循环小数; (2)4.50202…记作:4.5; (3)4.5≈5; (4)4.5≈4.50. 故答案为:循环,4.5,5,4.50.