round to the nearest tens. 646

round to the nearest tens. 324

320 right

Right.

round to the nearest tens. 575 that would be rounded to 580 right?

Yes.

Thank you for your help.

You're welcome.

To round 646 to the nearest tens place, you need to look at the digit in the units place, which is 6. Since the units digit is greater than 5, which is halfway to the next tens place, you need to round up.

To round up, you need to add 1 to the tens place and make the units place zero. So, rounding 646 to the nearest tens results in 650.

4 is in the 10s place.

Since 6 is more than 5, we round 646 to 650.

650