Addition , Subtraction and Multiplication worksheet - Free Printable

Let's solve each of the arithmetic problems step by step.

---

Addition

#### 1. $ 996 + 978 $

```
996
+ 978
-----
```

- Units: $6 + 8 = 14$ → write 4, carry over 1
- Tens: $9 + 7 = 16$, plus carry-over 1 = 17 → write 7, carry over 1
- Hundreds: $9 + 9 = 18$, plus carry-over 1 = 19

So:
$$
996 + 978 = 1974
$$

---

#### 2. $ 896 + 968 $

```
896
+ 968
-----
```

- Units: $6 + 8 = 14$ → write 4, carry over 1
- Tens: $9 + 6 = 15$, plus carry-over 1 = 16 → write 6, carry over 1
- Hundreds: $8 + 9 = 17$, plus carry-over 1 = 18

So:
$$
896 + 968 = 1864
$$

---

#### 3. $ 795 + 998 $

```
795
+ 998
-----
```

- Units: $5 + 8 = 13$ → write 3, carry over 1
- Tens: $9 + 9 = 18$, plus carry-over 1 = 19 → write 9, carry over 1
- Hundreds: $7 + 9 = 16$, plus carry-over 1 = 17

So:
$$
795 + 998 = 1793
$$

---

Subtraction

#### 1. $ 926 - 658 $

```
926
- 658
-----
```

- Units: $6 - 8$: can't do → borrow from tens
- Tens digit is 2 → becomes 1, units become 16
- $16 - 8 = 8$
- Tens: $1 (after borrow) - 5$: can't do → borrow from hundreds
- Hundreds digit is 9 → becomes 8, tens become 11
- $11 - 5 = 6$
- Hundreds: $8 - 6 = 2$

So:
$$
926 - 658 = 268
$$

---

#### 2. $ 835 - 368 $

```
835
- 368
-----
```

- Units: $5 - 8$: borrow → 15 - 8 = 7
- Tens: $2 (after borrow) - 6$: borrow → 12 - 6 = 6
- Hundreds: $7 (after borrow) - 3 = 4$

So:
$$
835 - 368 = 467
$$

---

#### 3. $ 956 - 598 $

```
956
- 598
-----
```

- Units: $6 - 8$: borrow → 16 - 8 = 8
- Tens: $4 (after borrow) - 9$: borrow → 14 - 9 = 5
- Hundreds: $8 (after borrow) - 5 = 3$

So:
$$
956 - 598 = 358
$$

---

Multiplication

All are multiplying by 2:

#### 1. $ 21 × 2 $

$$
21 × 2 = 42
$$

#### 2. $ 42 × 2 $

$$
42 × 2 = 84
$$

#### 3. $ 53 × 2 $

$$
53 × 2 = 106
$$

#### 4. $ 84 × 2 $

$$
84 × 2 = 168
$$

---

✔ Final Answers:

#### Addition
1. $ 996 + 978 = \boxed{1974} $
2. $ 896 + 968 = \boxed{1864} $
3. $ 795 + 998 = \boxed{1793} $

#### Subtraction
1. $ 926 - 658 = \boxed{268} $
2. $ 835 - 368 = \boxed{467} $
3. $ 956 - 598 = \boxed{358} $

#### Multiplication
1. $ 21 × 2 = \boxed{42} $
2. $ 42 × 2 = \boxed{84} $
3. $ 53 × 2 = \boxed{106} $
4. $ 84 × 2 = \boxed{168} $

Let me know if you'd like these written in a formatted worksheet style!