When we round a number to the hundreds place we look to our tens place to tell us if we round up or down. If the number in our tens place is \(\displaystyle 5\) or greater, we round up. If the number in the tens place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the hundreds place increases by \(\displaystyle 1\) and all the other numbers become \(\displaystyle 0\). When we round down, the number in the hundreds place stays the same and all the other numbers become \(\displaystyle 0\).

In this case, \(\displaystyle 4\) is less than \(\displaystyle 5\) so our rounded number is \(\displaystyle 700.\)

When we round a number to the hundreds place we look to our tens place to tell us if we round up or down. If the number in our tens place is \(\displaystyle 5\) or greater, we round up. If the number in the tens place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the hundreds place increases by \(\displaystyle 1\) and all the other numbers become \(\displaystyle 0\). When we round down, the number in the hundreds place stays the same and all the other numbers become \(\displaystyle 0\).

In this case, \(\displaystyle 9\) is greater than \(\displaystyle 5\) so our rounded number is \(\displaystyle 400.\)

When we round a number to the hundreds place we look to our tens place to tell us if we round up or down. If the number in our tens place is \(\displaystyle 5\) or greater, we round up. If the number in the tens place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the hundreds place increases by \(\displaystyle 1\) and all the other numbers become \(\displaystyle 0\). When we round down, the number in the hundreds place stays the same and all the other numbers become \(\displaystyle 0\).

In this case, \(\displaystyle 6\) is greater than \(\displaystyle 5\) so our rounded number is \(\displaystyle 300.\)

When we round a number to the hundreds place we look to our tens place to tell us if we round up or down. If the number in our tens place is \(\displaystyle 5\) or greater, we round up. If the number in the tens place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the hundreds place increases by \(\displaystyle 1\) and all the other numbers become \(\displaystyle 0\). When we round down, the number in the hundreds place stays the same and all the other numbers become \(\displaystyle 0\).

In this case, \(\displaystyle 7\) is greater than \(\displaystyle 5\) so our rounded number is \(\displaystyle 800.\)

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is \(\displaystyle 5\) or greater, we round up. If the number in the ones place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the tens place increases by \(\displaystyle 1\). The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same.

In this case, \(\displaystyle 9\) is greater than \(\displaystyle 5\) so our rounded number is \(\displaystyle 430.\)

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is \(\displaystyle 5\) or greater, we round up. If the number in the ones place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the tens place increases by \(\displaystyle 1\). The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same.

In this case, \(\displaystyle 6\) is greater than \(\displaystyle 5\) so our rounded number is \(\displaystyle 820.\)

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is \(\displaystyle 5\) or greater, we round up. If the number in the ones place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the tens place increases by \(\displaystyle 1\). The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same.

In this case, \(\displaystyle 5\) is equal to \(\displaystyle 5\) so our rounded number is \(\displaystyle 570.\)

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is \(\displaystyle 5\) or greater, we round up. If the number in the ones place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the tens place increases by \(\displaystyle 1\). The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same.

In this case, \(\displaystyle 1\) is less than \(\displaystyle 5\) so our rounded number is \(\displaystyle 510.\)

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is \(\displaystyle 5\) or greater, we round up. If the number in the ones place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the tens place increases by \(\displaystyle 1\). The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same.

In this case, \(\displaystyle 3\) is less than \(\displaystyle 5\) so our rounded number is \(\displaystyle 630.\)

When we round a number to the tens place we look to our ones place to tell us if we round up or down. If the number in our ones place is \(\displaystyle 5\) or greater, we round up. If the number in the ones place is \(\displaystyle 4\) or less, we round down. When we round up, the number in the tens place increases by \(\displaystyle 1\). The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same. When we round down, the number in the tens place stays the same. The numbers to the right of the tens place become \(\displaystyle 0\) and the numbers to the left of the tens place stay the same.

In this case, \(\displaystyle 4\) is less than \(\displaystyle 5\) so our rounded number is \(\displaystyle 390.\)