4 Digit Addition Worksheet Class 4 - EStudyNotes - Free Printable

Let’s solve each addition problem step by step.

We are adding 3-digit numbers to 4-digit numbers, aligned by place value (Thousands, Hundreds, Tens, Ones). We’ll add column by column from right to left (Ones → Tens → Hundreds → Thousands), carrying over when needed.

---

Problem a:
```
2 1 1
+ 5 0 3 0
----------
```

Align properly:
```
211
+ 5030
------
```

Add ones: 1 + 0 = 1
Add tens: 1 + 3 = 4
Add hundreds: 2 + 0 = 2
Add thousands: 0 + 5 = 5

→ Answer: 5241

Wait — let me double-check alignment. Actually, in the worksheet, it's written as:

a.
T H T O
2 1 1
+5 0 3 0

So that means:

Thousands: 0 (from 211) + 5 = 5
Hundreds: 2 + 0 = 2
Tens: 1 + 3 = 4
Ones: 1 + 0 = 1

Yes → 5241

---

Problem b:
```
6 9 4 0
+ 8 5 2 1
-----------
```

Align:
```
6940
+ 8521
------
```

Ones: 0 + 1 = 1
Tens: 4 + 2 = 6
Hundreds: 9 + 5 = 14 → write 4, carry 1
Thousands: 6 + 8 = 14, plus carried 1 = 15 → write 5, carry 1? Wait — no, we’re only going up to thousands here.

Actually, since both are 4-digit numbers:

6940
8521
-----

Ones: 0+1=1
Tens: 4+2=6
Hundreds: 9+5=14 → write 4, carry 1 to thousands
Thousands: 6+8=14, plus 1 = 15 → so 5 in thousands, and 1 ten-thousand? But the table only goes to T (thousands). Hmm.

Wait — looking at the original layout:

b.
T H T O
6 9 4 0
+8 5 2 1

That’s two 4-digit numbers. So sum can be 5 digits.

But the answer line has space for 4 digits? Let me check the image description again.

Actually, in the user’s image, under “Add the following”, each problem has columns labeled T H T O (Thousands, Hundreds, Tens, Ones), and then two rows of numbers above lines, with blank lines below for answers.

In problem b, it shows:

T H T O
6 9 4 0
+8 5 2 1

So yes, both are 4-digit numbers. Sum is 6940 + 8521.

Calculate:

6940
+8521
------
Start from right:

0 + 1 = 1
4 + 2 = 6
9 + 5 = 14 → write 4, carry 1
6 + 8 = 14, plus 1 = 15 → write 5, carry 1 → but now we have a ten-thousands digit.

So total is 15,461.

But if the answer sheet only allows 4 digits, maybe they expect us to ignore overflow? No — that doesn’t make sense. Probably the answer line just needs the full number.

Looking back at the worksheet structure — it says “T H T O” above, but that might just label the columns for the addends, not limit the answer. The answer line is separate.

So correct sum: 6940 + 8521 = 15,461

But let’s verify:

6940 + 8521:

6000 + 8000 = 14000
900 + 500 = 1400 → total 15400
40 + 21 = 61 → total 15461

Yes → 15461

But wait — in the original problem, is it possible that the second number is meant to be 3-digit? Looking at the text:

“b. 6 9 4 0
+ 8 5 2 1”

It clearly shows four digits in each row. So I think it’s intentional.

However, let’s look at other problems to see pattern.

Problem c:
T H T O
6 4 0 0
+9 7 3 5 → also two 4-digit numbers.

Similarly d, e, f all seem to be 4-digit additions.

So we must allow 5-digit answers where needed.

But in the answer blanks, how many spaces? The image isn't clear, but logically, we should compute correctly.

Perhaps the "T H T O" labels are only for the first number or something? No — in problem a, first number is 3-digit (211), second is 4-digit (5030).

I think safest to compute mathematically correct sums.

So continuing:

---

Problem c:
6400 + 9735

6400
+9735
------
0+5=5
0+3=3
4+7=11 → write 1, carry 1
6+9=15, plus 1=16 → write 6, carry 1 → so 16135

Check: 6400 + 9735 = 16135 ✓

---

Problem d:
6409 + 7302

6409
+7302
------
9+2=11 → write 1, carry 1
0+0=0, plus 1=1
4+3=7
6+7=13 → write 3, carry 1 → so 13711

Check: 6409 + 7302 = 13711 ✓

---

Problem e:
4019 + 3423

4019
+3423
------
9+3=12 → write 2, carry 1
1+2=3, plus 1=4
0+4=4
4+3=7 → 7442

Check: 4019 + 3423 = 7442 ✓

---

Problem f:
7386 + 2009

7386
+2009
------
6+9=15 → write 5, carry 1
8+0=8, plus 1=9
3+0=3
7+2=9 → 9395

Check: 7386 + 2009 = 9395 ✓

---

Now, let’s list all answers:

a. 211 + 5030 = 5241
b. 6940 + 8521 = 15461
c. 6400 + 9735 = 16135
d. 6409 + 7302 = 13711
e. 4019 + 3423 = 7442
f. 7386 + 2009 = 9395

All verified.

Final Answer:
a. 5241
b. 15461
c. 16135
d. 13711
e. 7442
f. 9395