3 Digit Subtraction

Front

What is 3-digit subtraction?

Back

3-digit subtraction is the process of subtracting one 3-digit number from another 3-digit number.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the first step in 3-digit subtraction?

Back

The first step is to line up the numbers by their place values: hundreds, tens, and ones.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you subtract in the ones place?

Back

Subtract the digits in the ones place. If the top digit is smaller, you need to borrow from the tens place.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does it mean to borrow in subtraction?

Back

Borrowing means taking 1 from the next higher place value to help subtract a smaller digit.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 456 - 123?

Back

The result is 333.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you check your subtraction answer?

Back

You can check your answer by adding the result to the number you subtracted.

Tags

CCSS.1.OA.A.1

Front

What is the difference between minuend and subtrahend?

Back

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

Tags

CCSS.1.OA.A.1

Front

What is 789 - 456?

Back

The result is 333.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What do you do if you can't subtract a digit in a column?

Back

If you can't subtract, you need to borrow from the next column to the left.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the importance of place value in subtraction?

Back

Place value helps you understand which digits to subtract and ensures accurate calculations.

Tags

CCSS.5.NBT.B.7