Addition, Subtraction, Multiplication, and Division Practice Worksheet

Let's solve each problem step by step in the worksheet. We'll go through addition, subtraction, multiplication, and division problems one by one.

---

1. Addition Problems

#### a) 363 + 125
```
363
+ 125
-----
488
```
✔ Answer: 488

#### b) 273 + 351
```
273
+ 351
-----
624
```
✔ Answer: 624

#### c) 958 + 345
```
958
+ 345
-----
1303
```
✔ Answer: 1303

#### d) 428 + 239
```
428
+ 239
-----
667
```
✔ Answer: 667

---

2. Subtraction Problems

#### a) 562 - 280
```
562
- 280
-----
282
```
✔ Answer: 282

#### b) 623 - 245
```
623
- 245
-----
378
```
✔ Answer: 378

#### c) 125 - 109
```
125
- 109
-----
16
```
✔ Answer: 16

#### d) 625 - 538
```
625
- 538
-----
87
```
✔ Answer: 87

---

3. Multiplication Problems

#### a) 523 × 45
Break it down:
```
523
× 45
------
2615 ← 523 × 5
20920 ← 523 × 40 (shifted one place left)
-------
23535
```
✔ Answer: 23,535

#### b) 720 × 19
```
720
× 19
------
6480 ← 720 × 9
7200 ← 720 × 10 (shifted)
-------
13680
```
✔ Answer: 13,680

#### c) 753 × 13
```
753
× 13
------
2259 ← 753 × 3
7530 ← 753 × 10
-------
9789
```
✔ Answer: 9,789

#### d) 580 × 18
```
580
× 18
------
4640 ← 580 × 8
5800 ← 580 × 10
-------
10440
```
✔ Answer: 10,440

---

4. Division Problems

#### a) 183 ÷ 9
We divide:
- 9 goes into 18 → 2 times → 2 × 9 = 18 → subtract → 0
- Bring down 3 → 9 goes into 3 → 0 times → remainder 3

So:
```
20 R3
------
9|183
-18
---
3
```
✔ Answer: 20 R3 or 20.333...

#### b) 960 ÷ 6
- 6 into 9 → 1 → 1×6=6 → 9-6=3
- Bring down 6 → 36 → 6 into 36 → 6 → 6×6=36 → 0
- Bring down 0 → 0 → 0

```
160
------
6|960
-6
--
36
-36
---
0
```
✔ Answer: 160

#### c) 158 ÷ 10
- 10 into 15 → 1 → 1×10=10 → 15-10=5
- Bring down 8 → 58 → 10 into 58 → 5 → 5×10=50 → remainder 8

```
15 R8
------
10|158
-10
---
58
-50
---
8
```
✔ Answer: 15 R8 or 15.8

#### d) 165 ÷ 11
- 11 into 16 → 1 → 1×11=11 → 16-11=5
- Bring down 5 → 55 → 11 into 55 → 5 → 5×11=55 → 0

```
15
------
11|165
-11
---
55
-55
---
0
```
✔ Answer: 15

---

✔ Final Answers Summary:

#### Addition
1. 363 + 125 = 488
2. 273 + 351 = 624
3. 958 + 345 = 1303
4. 428 + 239 = 667

#### Subtraction
5. 562 - 280 = 282
6. 623 - 245 = 378
7. 125 - 109 = 16
8. 625 - 538 = 87

#### Multiplication
9. 523 × 45 = 23,535
10. 720 × 19 = 13,680
11. 753 × 13 = 9,789
12. 580 × 18 = 10,440

#### Division
13. 183 ÷ 9 = 20 R3
14. 960 ÷ 6 = 160
15. 158 ÷ 10 = 15 R8
16. 165 ÷ 11 = 15

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