Rounding by 10 and 100

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified place value (like tens or hundreds) to make it simpler or easier to work with.

Front

What is the tens place in the number 725?

Back

The tens place in 725 is 2.

Front

What is the hundreds place in the number 124?

Back

The hundreds place in 124 is 1.

Front

How do you round 725 to the nearest tens place?

Back

Look at the ones place (5). Since it is 5 or more, round up to 730.

Front

How do you round 124 to the nearest hundreds place?

Back

Look at the tens place (2). Since it is less than 5, round down to 100.

Front

How do you round 1,812 to the nearest hundreds place?

Back

Look at the tens place (1). Since it is less than 5, round down to 1,800.

Front

How do you round 938 to the nearest tens place?

Back

Look at the ones place (8). Since it is 5 or more, round up to 940.

Front

How do you round 938 to the nearest hundreds place?

Back

Look at the tens place (3). Since it is less than 5, round down to 900.

Front

What is the rule for rounding up?

Back

If the digit in the place value to the right is 5 or more, round up.

Front

What is the rule for rounding down?

Back

If the digit in the place value to the right is less than 5, round down.