1: 54810≈? (精确到百分位) 2: 5.1972≈? (精确到0.01) 3: 3.

问题描述:

1: 54810≈? (精确到百分位) 2: 5.1972≈? (精确到0.01) 3: 3.
1: 54810≈?(精确到百分位)
2: 5.1972≈?(精确到0.01)
3: 3.86亿=? (科学计数法)

54810.005.203.86×10∧8