Flashcard M6 1.1-1.2

Front

What is expanded notation?

Back

Expanded notation is a way of writing numbers to show the value of each digit. For example, the number 7,432 can be written as (7 x 1,000) + (4 x 100) + (3 x 10) + (2 x 1).

Front

How do you write a number in standard form?

Back

To write a number in standard form, you express it using digits. For example, twenty-one thousand, six hundred fifty-six is written as 21,656.

Front

What happens to the digits when you round a number?

Back

When you round a number to a specific place value, all of the digits to its right become zeros.

Front

How do you round 79,854 to the thousands place?

Back

When rounding 79,854 to the thousands place, you look at the hundreds digit (8). Since it is 5 or more, you round up to 80,000.

Front

What is the value of the digit 4 in the number 629,715,084,391?

Back

The value of the digit 4 in the number 629,715,084,391 is 4,000.

Front

What is the place value of the digit 3 in the number 7,432?

Back

The place value of the digit 3 in the number 7,432 is 30, as it is in the tens place.

Front

How do you identify the digit in the hundreds place?

Back

To identify the digit in the hundreds place, count three places from the right in a number. For example, in 7,432, the digit in the hundreds place is 4.

Front

What is the difference between standard form and expanded notation?

Back

Standard form is the usual way of writing numbers using digits, while expanded notation breaks down the number to show the value of each digit.

Front

How do you convert a word number to digits?

Back

To convert a word number to digits, identify the values of each word and write them in numerical form. For example, 'twenty-one thousand' becomes 21,000.

Front

What is rounding?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was.