Addition and subtraction interactive worksheet for Year 1 | Live ... - Free Printable

Problem Description:

The task involves solving a series of addition and subtraction problems for Year 1 students. Each problem consists of two numbers, and the operation (addition or subtraction) is indicated by the symbols `+` or `-`. The goal is to compute the result of each operation.

Solution:

Let's solve each problem step by step:

---

#### 1) \( 25 + 14 \)
- Add the ones place: \( 5 + 4 = 9 \)
- Add the tens place: \( 2 + 1 = 3 \)
- Result: \( 39 \)

#### 2) \( 68 - 12 \)
- Subtract the ones place: \( 8 - 2 = 6 \)
- Subtract the tens place: \( 6 - 1 = 5 \)
- Result: \( 56 \)

#### 3) \( 70 + 24 \)
- Add the ones place: \( 0 + 4 = 4 \)
- Add the tens place: \( 7 + 2 = 9 \)
- Result: \( 94 \)

#### 4) \( 58 - 15 \)
- Subtract the ones place: \( 8 - 5 = 3 \)
- Subtract the tens place: \( 5 - 1 = 4 \)
- Result: \( 43 \)

#### 5) \( 34 + 22 \)
- Add the ones place: \( 4 + 2 = 6 \)
- Add the tens place: \( 3 + 2 = 5 \)
- Result: \( 56 \)

#### 6) \( 33 - 20 \)
- Subtract the ones place: \( 3 - 0 = 3 \)
- Subtract the tens place: \( 3 - 2 = 1 \)
- Result: \( 13 \)

#### 7) \( 42 + 44 \)
- Add the ones place: \( 2 + 4 = 6 \)
- Add the tens place: \( 4 + 4 = 8 \)
- Result: \( 86 \)

#### 8) \( 62 - 11 \)
- Subtract the ones place: \( 2 - 1 = 1 \)
- Subtract the tens place: \( 6 - 1 = 5 \)
- Result: \( 51 \)

#### 9) \( 58 + 11 \)
- Add the ones place: \( 8 + 1 = 9 \)
- Add the tens place: \( 5 + 1 = 6 \)
- Result: \( 69 \)

#### 10) \( 94 - 73 \)
- Subtract the ones place: \( 4 - 3 = 1 \)
- Subtract the tens place: \( 9 - 7 = 2 \)
- Result: \( 21 \)

#### 11) \( 21 + 57 \)
- Add the ones place: \( 1 + 7 = 8 \)
- Add the tens place: \( 2 + 5 = 7 \)
- Result: \( 78 \)

#### 12) \( 37 - 14 \)
- Subtract the ones place: \( 7 - 4 = 3 \)
- Subtract the tens place: \( 3 - 1 = 2 \)
- Result: \( 23 \)

#### 13) \( 35 + 33 \)
- Add the ones place: \( 5 + 3 = 8 \)
- Add the tens place: \( 3 + 3 = 6 \)
- Result: \( 68 \)

#### 14) \( 58 - 16 \)
- Subtract the ones place: \( 8 - 6 = 2 \)
- Subtract the tens place: \( 5 - 1 = 4 \)
- Result: \( 42 \)

#### 15) \( 12 + 76 \)
- Add the ones place: \( 2 + 6 = 8 \)
- Add the tens place: \( 1 + 7 = 8 \)
- Result: \( 88 \)

---

Final Answers:

\[
\boxed{
\begin{array}{ccc}
1) & 39 & 2) & 56 & 3) & 94 \\
4) & 43 & 5) & 56 & 6) & 13 \\
7) & 86 & 8) & 51 & 9) & 69 \\
10) & 21 & 11) & 78 & 12) & 23 \\
13) & 68 & 14) & 42 & 15) & 88 \\
\end{array}
}
\]