5NS.5 Rounding Decimals

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to a nearby, more convenient value, often to make calculations easier. It usually involves looking at the digit to the right of the place value you are rounding to.

Front

What is the nearest hundredth?

Back

The nearest hundredth is the second digit to the right of the decimal point. For example, in the number 5.67, the hundredth place is 7.

Front

How do you round 72.178 to the nearest hundredth?

Back

Look at the digit in the thousandths place (8). Since 8 is 5 or greater, round up the hundredths place (7) to 8. The answer is 72.18.

Front

What is the nearest tenth?

Back

The nearest tenth is the first digit to the right of the decimal point. For example, in the number 3.4, the tenth place is 4.

Front

How do you round 5.569 to the nearest tenth?

Back

Look at the digit in the hundredths place (6). Since 6 is 5 or greater, round up the tenths place (5) to 6. The answer is 5.6.

Front

What is the rule for rounding numbers?

Back

If the digit to the right of the place value you are rounding to is 5 or greater, round up. If it is less than 5, round down.

Front

Round 43.827 to the nearest hundredth.

Back

Look at the digit in the thousandths place (7). Since 7 is 5 or greater, round up the hundredths place (2) to 3. The answer is 43.83.

Front

What is the value of 1.72 rounded to the nearest tenth?

Back

Look at the digit in the hundredths place (2). Since 2 is less than 5, keep the tenths place (7) the same. The answer is 1.7.

Front

Round 5.592 to the nearest hundredth.

Back

Look at the digit in the thousandths place (2). Since 2 is less than 5, keep the hundredths place (9) the same. The answer is 5.59.

Front

What is rounding up?

Back

Rounding up means increasing the digit in the place value you are rounding to by 1 when the digit to the right is 5 or greater.