Subtraction

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the process of removing objects from a collection. It is the inverse of addition.

Front

What is the result of subtracting a larger number from a smaller number?

Back

The result is a negative number.

Tags

CCSS.7.NS.A.1C

Front

How do you perform subtraction with two-digit numbers?

Back

Align the numbers by their place values, subtract starting from the rightmost digit, and borrow from the next column if necessary.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is borrowing in subtraction?

Back

Borrowing is a technique used in subtraction when the top digit is smaller than the bottom digit in a column, requiring you to take 1 from the next left column.

Tags

CCSS.7.NS.A.1C

Front

What is the difference between the minuend and the subtrahend?

Back

The minuend is the number from which another number (the subtrahend) is subtracted.

Tags

CCSS.1.OA.A.1

Front

What is the term for the result of a subtraction operation?

Back

The result of a subtraction operation is called the difference.

Tags

CCSS.5.NBT.B.7

Front

How can you check your subtraction answer?

Back

You can check your subtraction answer by adding the difference to the subtrahend; if it equals the minuend, your answer is correct.

Tags

CCSS.1.OA.A.1

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations; knowing one can help you understand the other.

Tags

CCSS.2.NBT.B.5

Front

What is a common mistake when subtracting two-digit numbers?

Back

A common mistake is failing to borrow correctly when the top digit is smaller than the bottom digit.

Tags

CCSS.5.NBT.B.7

Front

How do you subtract numbers with zeros in them?

Back

When subtracting numbers with zeros, treat the zeros as placeholders and borrow from the next non-zero digit if necessary.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2