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Mastering 3-Digit Subtraction (No Regrouping) Made Easy
To ensure you've mastered subtracting three-digit numbers without regrouping, practice with our flashcards. These flashcards are designed to help you test yourself and reinforce your understanding. Download them or watch our practice video to get started!
Our Comprehensive Guide to 3-Digit Subtraction (No Regrouping)
Breaking Down 357 - 251
Understanding subtraction by breaking down each place value helps to grasp the process clearly. Let’s explore this with an example: subtracting 251 from 357.
Place Value Analysis
Hundreds Place:The number 357 consists of 3 hundreds.
Subtracting 2 hundreds from 3 hundreds leaves us with 1 hundred.
Tens Place:357 has 5 tens.
Subtracting 5 tens from 5 tens results in 0 tens.
Ones Place:The number 357 contains 7 ones.
Subtracting 1 one from 7 ones leaves us with 6 ones.
By combining these results, we get:
1 hundred,
0 tens,
6 ones.
Thus, 357 - 251 = 106.
Detailed Step-by-Step Process
Start with the Ones Place:You have 7 ones and subtract 1 one.
7−1=67 - 1 = 67−1=6
Move to the Tens Place:You have 5 tens and subtract 5 tens.
5−5=05 - 5 = 05−5=0
Finally, the Hundreds Place:You have 3 hundreds and subtract 2 hundreds.
3−2=13 - 2 = 13−2=1
Practice Example:
Let's take another example to practice.
Example: 482 - 261
Ones Place:2−1=12 - 1 = 12−1=1
Tens Place:8−6=28 - 6 = 28−6=2
Hundreds Place:4−2=24 - 2 = 24−2=2
So, 482 - 261 = 221.
By consistently practicing these steps, you’ll gain confidence and accuracy in subtracting three-digit numbers without needing to regroup.
When it comes to learning how to subtract three-digit numbers without regrouping, there's no better resource than Khan Academy. They provide an excellent, easy-to-follow explanation of this fundamental math concept. Check out the Khan Academy video on subtracting 3-digit numbers below to see a step-by-step breakdown.