Subtraction can be tricky, especially when you’re dealing with bigger numbers! But don’t worry, we’re here to break down a method that makes it much easier: 3 digit by 3 digit subtraction with regrouping. This is a skill that will help in everyday life, from figuring out change to measuring ingredients while cooking.
Think of subtraction as taking away. When the number you’re taking away is bigger than the number you’re taking it from, that’s where regrouping comes in! It’s like borrowing from your neighbor to make sure you have enough. Lets dive in and make sure you have fun while learning this important math skill!
Mastering 3 Digit by 3 Digit Subtraction with Regrouping
Let’s start with an example: 452 – 175. Write the numbers one on top of the other, lining up the ones, tens, and hundreds places. Always begin with the ones place, which in our example is 2 – 5. Since you can’t take 5 from 2, we need to regroup!
Go to the tens place (the 5 in 452). Borrow 1 ten, which leaves you with 4 tens. Add that 10 to the ones place, making it 12. Now you have 12 – 5, which equals 7. Write 7 in the ones place of your answer.
Next, move to the tens place. Remember, we borrowed 1 ten, so we now have 4 – 7. Again, we need to regroup! Go to the hundreds place (the 4 in 452). Borrow 1 hundred, leaving 3 hundreds. Add that 100 (which is the same as 10 tens) to the tens place, making it 14 tens.
Now you can subtract: 14 – 7 equals 7. Write 7 in the tens place of your answer. Finally, move to the hundreds place. We borrowed 1 hundred, so we have 3 – 1, which equals 2. Write 2 in the hundreds place. Therefore, 452 – 175 = 277!
Remember to always start from the right (the ones place) and move left. Regrouping might seem confusing at first, but with practice, it becomes second nature. Keep practicing with different numbers and don’t be afraid to ask for help. Soon, you’ll be a subtraction superstar!
Now that you’ve learned the basics of 3 digit by 3 digit subtraction with regrouping, think about how you can use this skill in your daily life. Maybe you’re calculating how much money you’ll save with a coupon, or perhaps you’re figuring out how many more pages you need to read in a book. Keep practicing, and you’ll be amazed at how useful this math skill can be!