Place Value and Rounding

Front

What is place value?

Back

Place value is the value of a digit based on its position in a number. For example, in the number 345, the digit 3 is in the hundreds place, so its value is 300.

Front

What is rounding?

Back

Rounding is the process of adjusting the value of a number to make it simpler and easier to work with, usually to the nearest whole number or specified decimal place.

Front

How do you round a number to the nearest whole number?

Back

To round a number to the nearest whole number, look at the digit to the right of the decimal point. If it is 5 or greater, round up. If it is less than 5, round down.

Front

What is the value of the digit 6 in the number 56,703,128.49?

Back

In the number 56,703,128.49, the digit 6 is in the millions place, so its value is 6,000,000.

Front

What digit is in the hundredths place in the number 2,604.197?

Back

The digit in the hundredths place in the number 2,604.197 is 9.

Front

How do you identify the thousands place in a number?

Back

The thousands place is the fourth digit from the right in a whole number. For example, in 56,703,128, the digit 7 is in the thousands place.

Front

What is the process to round $367.575 to the nearest cent?

Back

To round $367.575 to the nearest cent, look at the third decimal place (5). Since it is 5 or greater, round the second decimal place (7) up to 8, resulting in $367.58.

Front

Estimate the total cost of items priced at $3.97, $2.06, $4.11, and $1.89 by rounding to the nearest dollar.

Back

Rounding each price: $3.97 rounds to $4, $2.06 rounds to $2, $4.11 rounds to $4, and $1.89 rounds to $2. The estimated total is $4 + $2 + $4 + $2 = $12.

Front

What is the value of the digit 3 in the number 56,703,128.49?

Back

In the number 56,703,128.49, the digit 3 is in the thousands place, so its value is 3,000.

Front

What does it mean to round to the nearest ten?

Back

Rounding to the nearest ten means adjusting a number to the closest multiple of ten. For example, 47 rounds to 50, while 43 rounds to 40.