Subtract numbers up to three digits

Learning Objectives Subtract three-digit numbers without regrouping. Subtract three-digit numbers with regrouping from the tens place to the ones place. Subtract three-digit numbers with regrouping from the hundreds place to the tens place. Subtract three-digit numbers with regrouping across zeros. Solve one-step word problems involving subtraction of numbers up to three digits. Check their subtraction answers using the inverse operation of addition. You have 250 stickers and give 115 to your best friend. How many do you have left for your collection? 🤔 Let's find out! In this lesson, we will learn how to subtract numbers up to three digits. This is a very important skill that helps us figure out what is left when we take a smaller amount away from a larger amount. Ma...

TermDefinitionExample SubtractionThe process of taking one number away from another to find the difference.10 - 4 = 6 MinuendThe number you start with. It's the larger number from which another number is subtracted.In 150 - 50, the minuend is 150. SubtrahendThe number that is being taken away or subtracted from the minuend.In 150 - 50, the subtrahend is 50. DifferenceThe answer you get after you subtract one number from another.In 150 - 50 = 100, the difference is 100. Place ValueThe value of a digit based on its position in a number, such as ones, tens, or hundreds.In the number 345, the 5 is in the ones place, the 4 is in the tens place, and the 3 is in the hundreds place. Regrouping (or Borrowing)The process of trading a value from a higher place value column to a lower one. For e...

Standard Subtraction Algorithm \begin{array}{c} \phantom{-} H T O \\ - \phantom{H} T O \\ \hline \end{array} Always line up the numbers vertically by their place value (ones under ones, tens under tens, etc.). Start subtracting from the ones column on the right and move left. Regrouping Rule 1 \text{ ten} = 10 \text{ ones} \quad | \quad 1 \text{ hundred} = 10 \text{ tens} If the top digit in a column is smaller than the bottom digit, you must 'borrow' or regroup from the column to its left. Take 1 from the column to the left and add 10 to your current column. Checking with Addition (Inverse Operation) \text{Difference} + \text{Subtrahend} = \text{Minuend} To check if your subtraction answer is correct, you can add the answer (the difference) to the number y...