Grid of 25 math problems focusing on adding and subtracting numbers up to 100.

Problem: Solve the mixed addition and subtraction problems within 100, with and without regrouping.

#### Step-by-Step Solutions:

1. 58 + 3
- Add the ones place: \( 8 + 3 = 11 \)
- Write down 1 and carry over 1 to the tens place.
- Add the tens place: \( 5 + 0 + 1 = 6 \)
- Result: 61

2. 73 - 33
- Subtract the ones place: \( 3 - 3 = 0 \)
- Subtract the tens place: \( 7 - 3 = 4 \)
- Result: 40

3. 11 + 6
- Add the ones place: \( 1 + 6 = 7 \)
- Add the tens place: \( 1 + 0 = 1 \)
- Result: 17

4. 88 - 49
- Subtract the ones place: \( 8 - 9 \) (borrow 1 from the tens place)
- After borrowing: \( 18 - 9 = 9 \)
- Subtract the tens place: \( 7 - 4 = 3 \) (after borrowing)
- Result: 39

5. 60 - 56
- Subtract the ones place: \( 0 - 6 \) (borrow 1 from the tens place)
- After borrowing: \( 10 - 6 = 4 \)
- Subtract the tens place: \( 5 - 5 = 0 \) (after borrowing)
- Result: 4

6. 8 + 20
- Add the ones place: \( 8 + 0 = 8 \)
- Add the tens place: \( 0 + 2 = 2 \)
- Result: 28

7. 4 + 7
- Add the ones place: \( 4 + 7 = 11 \)
- Write down 1 and carry over 1 to the tens place.
- Add the tens place: \( 0 + 0 + 1 = 1 \)
- Result: 11

8. 40 + 8
- Add the ones place: \( 0 + 8 = 8 \)
- Add the tens place: \( 4 + 0 = 4 \)
- Result: 48

9. 55 - 44
- Subtract the ones place: \( 5 - 4 = 1 \)
- Subtract the tens place: \( 5 - 4 = 1 \)
- Result: 11

10. 58 + 15
- Add the ones place: \( 8 + 5 = 13 \)
- Write down 3 and carry over 1 to the tens place.
- Add the tens place: \( 5 + 1 + 1 = 7 \)
- Result: 73

11. 17 + 74
- Add the ones place: \( 7 + 4 = 11 \)
- Write down 1 and carry over 1 to the tens place.
- Add the tens place: \( 1 + 7 + 1 = 9 \)
- Result: 91

12. 62 - 2
- Subtract the ones place: \( 2 - 2 = 0 \)
- Subtract the tens place: \( 6 - 0 = 6 \)
- Result: 60

13. 27 + 30
- Add the ones place: \( 7 + 0 = 7 \)
- Add the tens place: \( 2 + 3 = 5 \)
- Result: 57

14. 7 - 2
- Subtract the ones place: \( 7 - 2 = 5 \)
- Result: 5

15. 8 - 1
- Subtract the ones place: \( 8 - 1 = 7 \)
- Result: 7

16. 4 - 2
- Subtract the ones place: \( 4 - 2 = 2 \)
- Result: 2

17. 28 + 3
- Add the ones place: \( 8 + 3 = 11 \)
- Write down 1 and carry over 1 to the tens place.
- Add the tens place: \( 2 + 0 + 1 = 3 \)
- Result: 31

18. 26 + 4
- Add the ones place: \( 6 + 4 = 10 \)
- Write down 0 and carry over 1 to the tens place.
- Add the tens place: \( 2 + 0 + 1 = 3 \)
- Result: 30

19. 8 - 6
- Subtract the ones place: \( 8 - 6 = 2 \)
- Result: 2

20. 8 + 38
- Add the ones place: \( 8 + 8 = 16 \)
- Write down 6 and carry over 1 to the tens place.
- Add the tens place: \( 0 + 3 + 1 = 4 \)
- Result: 46

21. 9 + 5
- Add the ones place: \( 9 + 5 = 14 \)
- Write down 4 and carry over 1 to the tens place.
- Add the tens place: \( 0 + 0 + 1 = 1 \)
- Result: 14

22. 58 + 20
- Add the ones place: \( 8 + 0 = 8 \)
- Add the tens place: \( 5 + 2 = 7 \)
- Result: 78

23. 4 - 3
- Subtract the ones place: \( 4 - 3 = 1 \)
- Result: 1

24. 34 - 16
- Subtract the ones place: \( 4 - 6 \) (borrow 1 from the tens place)
- After borrowing: \( 14 - 6 = 8 \)
- Subtract the tens place: \( 2 - 1 = 1 \) (after borrowing)
- Result: 18

25. 80 - 42
- Subtract the ones place: \( 0 - 2 \) (borrow 1 from the tens place)
- After borrowing: \( 10 - 2 = 8 \)
- Subtract the tens place: \( 7 - 4 = 3 \) (after borrowing)
- Result: 38

Final Answers:

\[
\boxed{
\begin{array}{ccccc}
61 & 40 & 17 & 39 & 4 \\
28 & 11 & 48 & 11 & 73 \\
91 & 60 & 57 & 5 & 7 \\
2 & 31 & 30 & 2 & 46 \\
14 & 78 & 1 & 18 & 38 \\
\end{array}
}
\]