4 Digit Addition Worksheet-3 - skoolon.com - Free Printable

Let’s solve each part of the worksheet step by step.

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Q1: Add the following numbers with regrouping

We’ll add each column from right to left (Ones → Tens → Hundreds → Thousands), and carry over if the sum is 10 or more.

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Problem 1: 5174 + 2954

```
Th H T O
5 1 7 4
+ 2 9 5 4
--------------
```

- Ones: 4 + 4 = 8 → write 8
- Tens: 7 + 5 = 12 → write 2, carry 1
- Hundreds: 1 + 9 = 10, plus carried 1 = 11 → write 1, carry 1
- Thousands: 5 + 2 = 7, plus carried 1 = 8

→ Answer: 8128

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Problem 2: 1589 + 73

Note: 73 has no thousands or hundreds — align to the right.

```
Th H T O
1 5 8 9
+ 0 7 3 ← we can think of it as 0073
--------------
```

- Ones: 9 + 3 = 12 → write 2, carry 1
- Tens: 8 + 7 = 15, plus carried 1 = 16 → write 6, carry 1
- Hundreds: 5 + 0 = 5, plus carried 1 = 6
- Thousands: 1 + 0 = 1

→ Answer: 1662

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Problem 3: 2873 + 207

Align to the right:

```
Th H T O
2 8 7 3
+ 2 0 7
--------------
```

- Ones: 3 + 7 = 10 → write 0, carry 1
- Tens: 7 + 0 = 7, plus carried 1 = 8
- Hundreds: 8 + 2 = 10 → write 0, carry 1
- Thousands: 2 + 0 = 2, plus carried 1 = 3

→ Answer: 3080

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Problem 4: 7766 + 435

```
Th H T O
7 7 6 6
+ 4 3 5
--------------
```

- Ones: 6 + 5 = 11 → write 1, carry 1
- Tens: 6 + 3 = 9, plus carried 1 = 10 → write 0, carry 1
- Hundreds: 7 + 4 = 11, plus carried 1 = 12 → write 2, carry 1
- Thousands: 7 + 0 = 7, plus carried 1 = 8

→ Answer: 8201

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Problem 5: 4567 + 1674

```
Th H T O
4 5 6 7
+ 1 6 7 4
--------------
```

- Ones: 7 + 4 = 11 → write 1, carry 1
- Tens: 6 + 7 = 13, plus carried 1 = 14 → write 4, carry 1
- Hundreds: 5 + 6 = 11, plus carried 1 = 12 → write 2, carry 1
- Thousands: 4 + 1 = 5, plus carried 1 = 6

→ Answer: 6241

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Problem 6: 6563 + 1927

```
Th H T O
6 5 6 3
+ 1 9 2 7
--------------
```

- Ones: 3 + 7 = 10 → write 0, carry 1
- Tens: 6 + 2 = 8, plus carried 1 = 9
- Hundreds: 5 + 9 = 14 → write 4, carry 1
- Thousands: 6 + 1 = 7, plus carried 1 = 8

→ Answer: 8490

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Q2: Fill the missing numbers in the pyramid

This is a number pyramid where each box is the sum of the two boxes directly below it.

Bottom row (given):
1003, 1050, 652, 987

Second row (from bottom):
First box: 1003 + 1050 = 2053 (already given)
Second box: 1050 + 652 = 1702
Third box: 652 + 987 = 1639 (already given)

So second row is: 2053, 1702, 1639

Third row:
First box: 2053 + 1702 = 3755
Second box: 1702 + 1639 = 3341

Top box: 3755 + 3341 = 7096

So filled pyramid:

Top: 7096
Middle row: 3755, 3341
Bottom row (middle): 2053, 1702, 1639
Bottom row (base): 1003, 1050, 652, 987

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Q3: Given that ♣ = 5967 and ♠ = 4758, find ♣ + ♠

Just add:

```
5967
+ 4758
-------
```

- Ones: 7 + 8 = 15 → write 5, carry 1
- Tens: 6 + 5 = 11, plus carried 1 = 12 → write 2, carry 1
- Hundreds: 9 + 7 = 16, plus carried 1 = 17 → write 7, carry 1
- Thousands: 5 + 4 = 9, plus carried 1 = 10 → write 10

→ Answer: 10725

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Final Answer:
Q1:
1. 8128
2. 1662
3. 3080
4. 8201
5. 6241
6. 8490

Q2: Missing numbers are 1702 (second row middle), 3755 and 3341 (third row), and 7096 (top).

Q3: 10725