1.5707 = 157.07% which rounds up to 158%. To the nearest integer it would round DOWN to 157.It is 1.57
55,500 is the smallest number that rounds to 56,000
It is: 6000 rounded to the nearest thousand
14000
It rounds to 45,000 to the nearest 1000
3,599 or 3,600
20000
To round look at the place value column to the right of the ten thousands column (the thousands column) - if it is 5 or more, the number rounds up, otherwise it rounds down. In 527,040 the thousands column is 7 which is 5 or more, so it rounds up. 527,040 → 530,000 to the nearest ten thousand.
1000
8 500
0.618 rounds to 0.62
But if you meant thousands, it rounds to zero.