Place Value/Rounding/Addition/Subtraction

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 261, the digit 2 is in the hundreds place, so its value is 200.

Front

How do you write a number in expanded form?

Back

To write a number in expanded form, break it down into the sum of each digit multiplied by its place value. For example, 261 = 200 + 60 + 1.

Front

What is the value of the digit 9 in the number 293,672?

Back

The value of the digit 9 in 293,672 is 90,000 because it is in the ten-thousands place.

Front

What is standard form?

Back

Standard form is the way of writing numbers using digits. For example, the standard form of 1,000 + 300 + 50 + 7 is 1,357.

Front

What is the value of the digit 5 in the number 2,345?

Back

The value of the digit 5 in 2,345 is 5 because it is in the ones place.

Front

How do you round a number?

Back

To round a number, look at the digit to the right of the place you are rounding to. If it is 5 or more, round up; if it is less than 5, round down.

Front

What is the value of the digit 6 in the number 60,000 + 5,000 + 600 + 40 + 6?

Back

The value of the digit 6 in this number is 6 because it is in the ones place.

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers. For example, 2 + 3 = 5.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another. For example, 5 - 2 = 3.

Front

What is the difference between expanded form and standard form?

Back

Expanded form shows the value of each digit separately, while standard form is the regular way of writing the number using digits.