Look at the digit in ones place. If it is five or greater, round the digit in tens place to the next higher digit. If the digit in ones place is less than five, leave the digit in tens place as it is. 512162 rounded to the nearest tens is 512160.
69
69 !
538 is rounded to 540 to the nearest tens digit or to 500 to the nearest hundred.
The tens digit.
2,380
'94' rounded to the nearest tens is '90'.
130
135
Yes.
1640
94
60
20
630
Look at the digit in ones place. If it is five or greater, round the digit in tens place to the next higher digit. If the digit in ones place is less than five, leave the digit in tens place as it is. 512162 rounded to the nearest tens is 512160.
89 rounds to 90