This worksheet provides sixteen practice problems for adding three-digit numbers with regrouping.
Addition with regrouping worksheet featuring 16 three-digit addition problems in a grid format.
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Step-by-step solution for: Addition Worksheets -Worksheets Library
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Show Answer Key & Explanations
Step-by-step solution for: Addition Worksheets -Worksheets Library
The task involves solving addition problems with regrouping. Let's go through each problem step by step.
```
446
+ 499
------
```
- Units place: \(6 + 9 = 15\). Write down 5 and carry over 1.
- Tens place: \(4 + 9 + 1 = 14\). Write down 4 and carry over 1.
- Hundreds place: \(4 + 4 + 1 = 9\).
Answer: \(945\)
```
578
+ 349
------
```
- Units place: \(8 + 9 = 17\). Write down 7 and carry over 1.
- Tens place: \(7 + 4 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(5 + 3 + 1 = 9\).
Answer: \(927\)
```
383
+ 609
------
```
- Units place: \(3 + 9 = 12\). Write down 2 and carry over 1.
- Tens place: \(8 + 0 + 1 = 9\).
- Hundreds place: \(3 + 6 = 9\).
Answer: \(992\)
```
525
+ 79
------
```
- Units place: \(5 + 9 = 14\). Write down 4 and carry over 1.
- Tens place: \(2 + 7 + 1 = 10\). Write down 0 and carry over 1.
- Hundreds place: \(5 + 0 + 1 = 6\).
Answer: \(604\)
```
347
+ 385
------
```
- Units place: \(7 + 5 = 12\). Write down 2 and carry over 1.
- Tens place: \(4 + 8 + 1 = 13\). Write down 3 and carry over 1.
- Hundreds place: \(3 + 3 + 1 = 7\).
Answer: \(732\)
```
108
+ 794
------
```
- Units place: \(8 + 4 = 12\). Write down 2 and carry over 1.
- Tens place: \(0 + 9 + 1 = 10\). Write down 0 and carry over 1.
- Hundreds place: \(1 + 7 + 1 = 9\).
Answer: \(902\)
```
869
+ 39
------
```
- Units place: \(9 + 9 = 18\). Write down 8 and carry over 1.
- Tens place: \(6 + 3 + 1 = 10\). Write down 0 and carry over 1.
- Hundreds place: \(8 + 0 + 1 = 9\).
Answer: \(908\)
```
686
+ 338
------
```
- Units place: \(6 + 8 = 14\). Write down 4 and carry over 1.
- Tens place: \(8 + 3 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(6 + 3 + 1 = 10\).
Answer: \(1024\)
```
589
+ 483
------
```
- Units place: \(9 + 3 = 12\). Write down 2 and carry over 1.
- Tens place: \(8 + 8 + 1 = 17\). Write down 7 and carry over 1.
- Hundreds place: \(5 + 4 + 1 = 10\).
Answer: \(1072\)
```
760
+ 159
------
```
- Units place: \(0 + 9 = 9\).
- Tens place: \(6 + 5 = 11\). Write down 1 and carry over 1.
- Hundreds place: \(7 + 1 + 1 = 9\).
Answer: \(919\)
```
355
+ 609
------
```
- Units place: \(5 + 9 = 14\). Write down 4 and carry over 1.
- Tens place: \(5 + 0 + 1 = 6\).
- Hundreds place: \(3 + 6 = 9\).
Answer: \(964\)
```
276
+ 589
------
```
- Units place: \(6 + 9 = 15\). Write down 5 and carry over 1.
- Tens place: \(7 + 8 + 1 = 16\). Write down 6 and carry over 1.
- Hundreds place: \(2 + 5 + 1 = 8\).
Answer: \(865\)
```
548
+ 379
------
```
- Units place: \(8 + 9 = 17\). Write down 7 and carry over 1.
- Tens place: \(4 + 7 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(5 + 3 + 1 = 9\).
Answer: \(927\)
```
775
+ 98
------
```
- Units place: \(5 + 8 = 13\). Write down 3 and carry over 1.
- Tens place: \(7 + 9 + 1 = 17\). Write down 7 and carry over 1.
- Hundreds place: \(7 + 0 + 1 = 8\).
Answer: \(873\)
```
792
+ 488
------
```
- Units place: \(2 + 8 = 10\). Write down 0 and carry over 1.
- Tens place: \(9 + 8 + 1 = 18\). Write down 8 and carry over 1.
- Hundreds place: \(7 + 4 + 1 = 12\).
Answer: \(1280\)
```
722
+ 198
------
```
- Units place: \(2 + 8 = 10\). Write down 0 and carry over 1.
- Tens place: \(2 + 9 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(7 + 1 + 1 = 9\).
Answer: \(920\)
\[
\boxed{
\begin{array}{cccc}
945 & 927 & 992 & 604 \\
732 & 902 & 908 & 1024 \\
1072 & 919 & 964 & 865 \\
927 & 873 & 1280 & 920 \\
\end{array}
}
\]
Problem 1: \(446 + 499\)
```
446
+ 499
------
```
- Units place: \(6 + 9 = 15\). Write down 5 and carry over 1.
- Tens place: \(4 + 9 + 1 = 14\). Write down 4 and carry over 1.
- Hundreds place: \(4 + 4 + 1 = 9\).
Answer: \(945\)
Problem 2: \(578 + 349\)
```
578
+ 349
------
```
- Units place: \(8 + 9 = 17\). Write down 7 and carry over 1.
- Tens place: \(7 + 4 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(5 + 3 + 1 = 9\).
Answer: \(927\)
Problem 3: \(383 + 609\)
```
383
+ 609
------
```
- Units place: \(3 + 9 = 12\). Write down 2 and carry over 1.
- Tens place: \(8 + 0 + 1 = 9\).
- Hundreds place: \(3 + 6 = 9\).
Answer: \(992\)
Problem 4: \(525 + 79\)
```
525
+ 79
------
```
- Units place: \(5 + 9 = 14\). Write down 4 and carry over 1.
- Tens place: \(2 + 7 + 1 = 10\). Write down 0 and carry over 1.
- Hundreds place: \(5 + 0 + 1 = 6\).
Answer: \(604\)
Problem 5: \(347 + 385\)
```
347
+ 385
------
```
- Units place: \(7 + 5 = 12\). Write down 2 and carry over 1.
- Tens place: \(4 + 8 + 1 = 13\). Write down 3 and carry over 1.
- Hundreds place: \(3 + 3 + 1 = 7\).
Answer: \(732\)
Problem 6: \(108 + 794\)
```
108
+ 794
------
```
- Units place: \(8 + 4 = 12\). Write down 2 and carry over 1.
- Tens place: \(0 + 9 + 1 = 10\). Write down 0 and carry over 1.
- Hundreds place: \(1 + 7 + 1 = 9\).
Answer: \(902\)
Problem 7: \(869 + 39\)
```
869
+ 39
------
```
- Units place: \(9 + 9 = 18\). Write down 8 and carry over 1.
- Tens place: \(6 + 3 + 1 = 10\). Write down 0 and carry over 1.
- Hundreds place: \(8 + 0 + 1 = 9\).
Answer: \(908\)
Problem 8: \(686 + 338\)
```
686
+ 338
------
```
- Units place: \(6 + 8 = 14\). Write down 4 and carry over 1.
- Tens place: \(8 + 3 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(6 + 3 + 1 = 10\).
Answer: \(1024\)
Problem 9: \(589 + 483\)
```
589
+ 483
------
```
- Units place: \(9 + 3 = 12\). Write down 2 and carry over 1.
- Tens place: \(8 + 8 + 1 = 17\). Write down 7 and carry over 1.
- Hundreds place: \(5 + 4 + 1 = 10\).
Answer: \(1072\)
Problem 10: \(760 + 159\)
```
760
+ 159
------
```
- Units place: \(0 + 9 = 9\).
- Tens place: \(6 + 5 = 11\). Write down 1 and carry over 1.
- Hundreds place: \(7 + 1 + 1 = 9\).
Answer: \(919\)
Problem 11: \(355 + 609\)
```
355
+ 609
------
```
- Units place: \(5 + 9 = 14\). Write down 4 and carry over 1.
- Tens place: \(5 + 0 + 1 = 6\).
- Hundreds place: \(3 + 6 = 9\).
Answer: \(964\)
Problem 12: \(276 + 589\)
```
276
+ 589
------
```
- Units place: \(6 + 9 = 15\). Write down 5 and carry over 1.
- Tens place: \(7 + 8 + 1 = 16\). Write down 6 and carry over 1.
- Hundreds place: \(2 + 5 + 1 = 8\).
Answer: \(865\)
Problem 13: \(548 + 379\)
```
548
+ 379
------
```
- Units place: \(8 + 9 = 17\). Write down 7 and carry over 1.
- Tens place: \(4 + 7 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(5 + 3 + 1 = 9\).
Answer: \(927\)
Problem 14: \(775 + 98\)
```
775
+ 98
------
```
- Units place: \(5 + 8 = 13\). Write down 3 and carry over 1.
- Tens place: \(7 + 9 + 1 = 17\). Write down 7 and carry over 1.
- Hundreds place: \(7 + 0 + 1 = 8\).
Answer: \(873\)
Problem 15: \(792 + 488\)
```
792
+ 488
------
```
- Units place: \(2 + 8 = 10\). Write down 0 and carry over 1.
- Tens place: \(9 + 8 + 1 = 18\). Write down 8 and carry over 1.
- Hundreds place: \(7 + 4 + 1 = 12\).
Answer: \(1280\)
Problem 16: \(722 + 198\)
```
722
+ 198
------
```
- Units place: \(2 + 8 = 10\). Write down 0 and carry over 1.
- Tens place: \(2 + 9 + 1 = 12\). Write down 2 and carry over 1.
- Hundreds place: \(7 + 1 + 1 = 9\).
Answer: \(920\)
Final Answers:
\[
\boxed{
\begin{array}{cccc}
945 & 927 & 992 & 604 \\
732 & 902 & 908 & 1024 \\
1072 & 919 & 964 & 865 \\
927 & 873 & 1280 & 920 \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of addition worksheet hundreds.
