Math Review 1

Front

What is the process to find the difference between two numbers?

Back

To find the difference between two numbers, subtract the smaller number from the larger number.

Front

How do you perform addition with large numbers?

Back

Align the numbers by their rightmost digits and add each column starting from the right, carrying over if necessary.

Front

What is expanded form in mathematics?

Back

Expanded form is a way of writing numbers that shows the value of each digit. For example, 6,298 in expanded form is 6,000 + 200 + 90 + 8.

Front

How do you write a number in word form?

Back

To write a number in word form, break it down into its place values and write each part in words. For example, 789,345 is written as 'seven hundred eighty-nine thousand three hundred forty-five'.

Front

What is the difference between 5,678 and 2,345?

Back

The difference is 3,333.

Front

What is the sum of 6,399 and 7,438?

Back

The sum is 13,837.

Front

What is the importance of place value in mathematics?

Back

Place value determines the value of a digit based on its position in a number, which is essential for understanding and performing arithmetic operations.

Front

How do you check your subtraction work?

Back

To check subtraction, you can add the difference to the smaller number to see if it equals the larger number.

Front

What is a common mistake when adding large numbers?

Back

A common mistake is misaligning the numbers, which can lead to incorrect sums.

Front

What is the significance of carrying over in addition?

Back

Carrying over is necessary when the sum of a column exceeds 9, ensuring that each digit is correctly placed in the final sum.