Math worksheet for Class I focusing on addition using tens and ones place values.

Let’s solve each addition problem step by step. We’ll add the ones column first, then the tens column. If there’s a carryover, we’ll handle it too — but in these problems, most are simple and don’t need carrying.

We’ll go row by row, left to right.

---

First Row:

1.
Tens: 3, Ones: 1 → number is 31
Add: +5 (which is 0 tens and 5 ones)
Ones: 1 + 5 = 6
Tens: 3 + 0 = 3
→ Answer: 36

2.
Tens: 1, Ones: 6 → 16
+4 → ones: 6 + 4 = 10 → write 0, carry 1 to tens
Tens: 1 + 0 + 1 (carry) = 2
→ Answer: 20

Wait — let me double-check that.
Actually, looking at the layout:

It says:
```
Tens Ones
1 6
+ 4
-------
```

So yes, 16 + 4 = 20 ✔

3.
Tens: 3, Ones: 2 → 32
+5 → 32 + 5 = 37
→ Answer: 37

---

Second Row:

4.
Tens: 2, Ones: 5 → 25
+3 → 25 + 3 = 28
→ Answer: 28

5.
Tens: 1, Ones: 2 → 12
+7 → 12 + 7 = 19
→ Answer: 19

6.
This one is written differently:
```
Tens Ones
6
+ 5 9
-------
```

That means: top number is 0 tens and 6 ones → 6
Bottom number is 5 tens and 9 ones → 59
So: 6 + 59 = 65
Or you can think:
Ones: 6 + 9 = 15 → write 5, carry 1
Tens: 0 + 5 + 1 = 6
→ Answer: 65

---

Third Row:

7.
Written as:
```
Tens Ones
+4 4
6
-------
```

Top: +4 in tens? Wait — this might be misaligned. Let’s read carefully.

Actually, looking again:

It says:
```
Tens Ones
+4 4
6
-------
```

Hmm — probably it's meant to be:

Number 1: 4 tens and 4 ones → 44
Plus: 6 (so 0 tens, 6 ones)
But wait — the “+4” is under Tens? That doesn’t make sense unless it’s part of the first number.

Actually, re-examining the original image description (even though I shouldn’t describe it), from standard worksheet format:

Likely, it’s:

First number: blank tens, 4 ones? No — let’s interpret based on alignment.

Looking at how others are structured:

In third row, first problem:

“Tens Ones” header
Then: “+4 4” — likely meaning the first number has 4 in tens place? But there’s a plus sign before the 4? That’s odd.

Wait — perhaps it’s:

The first line under “Tens Ones” is the first number, second line is what you’re adding.

So for problem 7:

Line 1: Tens= ?, Ones=4 → but it says “+4 4” — maybe the “+4” is indicating you’re adding 4 to the tens? That doesn’t fit.

Alternative interpretation: Maybe it’s a typo or formatting issue. Looking at similar worksheets, sometimes they write:

For example:

```
Tens Ones
4 4
+ 6
--------
```

Which would be 44 + 6 = 50

But here it says “+4 4” on first line and “ 6” on second.

Perhaps the “+4” is actually part of the first number? Like, it’s 44, and you’re adding 6.

I think that’s the intended meaning. Because if you look at other problems, like #8:

```
Tens Ones
5 2
+ 3
-------
```

That’s clearly 52 + 3 = 55

Similarly, #9:

```
Tens Ones
4 3
+ 4
-------
```

43 + 4 = 47

So for #7, even though it says “+4 4”, it’s likely a formatting quirk — probably meant to be:

First number: 4 tens and 4 ones → 44
Second number: 0 tens and 6 ones → 6
So 44 + 6 = 50

Yes, that makes sense. The “+” might be misplaced or just indicating operation.

So:

7. 44 + 6 = 50 → Answer: 50

8. 52 + 3 = 55 → Answer: 55

9. 43 + 4 = 47 → Answer: 47

---

Fourth Row:

10.
```
Tens Ones
7 4
+ 2 5
-------
```

74 + 25
Ones: 4 + 5 = 9
Tens: 7 + 2 = 9
→ Answer: 99

11.
```
Tens Ones
4 2
+ 5 1
-------
```

42 + 51
Ones: 2 + 1 = 3
Tens: 4 + 5 = 9
→ Answer: 93

12.
```
Tens Ones
5
+ 2 6
-------
```

Top: 0 tens, 5 ones → 5
Bottom: 2 tens, 6 ones → 26
5 + 26 = 31
Or:
Ones: 5 + 6 = 11 → write 1, carry 1
Tens: 0 + 2 + 1 = 3
→ Answer: 31

---

Now, let’s list all answers in order as they appear on the worksheet (left to right, top to bottom):

Row 1:
1. 36
2. 20
3. 37

Row 2:
4. 28
5. 19
6. 65

Row 3:
7. 50
8. 55
9. 47

Row 4:
10. 99
11. 93
12. 31

Double-checking any tricky ones:

- Problem 2: 16 + 4 = 20 ✔
- Problem 6: 6 + 59 = 65 ✔
- Problem 7: 44 + 6 = 50 ✔ (assuming formatting)
- Problem 12: 5 + 26 = 31 ✔

All seem correct.

Final Answer:
36, 20, 37, 28, 19, 65, 50, 55, 47, 99, 93, 31