Unit 4 Math Review

Front

What is expanded form?

Back

Expanded form is a way to write numbers that shows the value of each digit. For example, 5,679 in expanded form is 5,000 + 600 + 70 + 9.

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 ten, hundred, etc.

Front

What is 5,679 in expanded form?

Back

5,000 + 600 + 70 + 9.

Front

How do you round 682 to the nearest 10?

Back

Look at the digit in the ones place (2). Since it is less than 5, round down to 680.

Front

What is the product of 40 and 6?

Back

240.

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another.

Front

What is 6,732 - 3,469?

Back

3,263.

Front

What is 741 rounded to the nearest 100?

Back

700.

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times.

Front

What is the difference between addition and subtraction?

Back

Addition combines numbers to get a total, while subtraction takes one number away from another.