Math crossword puzzle focusing on time measurement concepts.

Let’s solve each clue step by step. We’ll do the math carefully and write down the answers for Across and Down clues.

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ACROSS:

1. 15 weeks = ___ days
→ 1 week = 7 days → 15 × 7 = 105

4. (56 + 12) X 2 =
→ 56 + 12 = 68 → 68 × 2 = 136

6. 5 hours = ___ minutes
→ 1 hour = 60 minutes → 5 × 60 = 300

7. 460 - 228 =
→ 460 - 200 = 260; 260 - 28 = 232

8. 4 Across + 7 Across =
→ 4 Across is 136, 7 Across is 232 → 136 + 232 = 368

10. 6 days = ___ hours
→ 1 day = 24 hours → 6 × 24 = 144

12. (60 X 4) X 6 =
→ 60 × 4 = 240 → 240 × 6 = 1440

14. (60 X 8) X 5 =
→ 60 × 8 = 480 → 480 × 5 = 2400

15. 5 days = ___ hours
→ 5 × 24 = 120

17. 10 Across + 15 Across =
→ 10 Across is 144, 15 Across is 120 → 144 + 120 = 264

19. 1 week = ___ hours
→ 7 × 24 = 168

21. 52 weeks = ___ days
→ 52 × 7 = 364

22. 7 Across X 4 =
→ 7 Across is 232 → 232 × 4 = 928

23. 8 Across + 21 Across =
→ 8 Across is 368, 21 Across is 364 → 368 + 364 = 732

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DOWN:

1. 6 days = ___ hours
→ Same as 10 Across → 144

2. 76 weeks = ___ days
→ 76 × 7 = let’s compute: 70×7=490, 6×7=42 → 490+42=532

3. 2000, 2001, 2002, 2003, ___, ...
→ Next year is 2004

4. 60 + 40 + 23 =
→ 60+40=100; 100+23=123

5. (300 X 2) + 48 =
→ 300×2=600; 600+48=648

9. (10 X 2) X 3 =
→ 10×2=20; 20×3=60

10. 97, 99, ___, 103, 105...
→ Odd numbers increasing by 2 → after 99 is 101

11. 7 minutes = ___ seconds
→ 1 min = 60 sec → 7×60=420

13. 52 X 8 =
→ 50×8=400, 2×8=16 → 400+16=416

16. 14 Across + 4 Across =
→ 14 Across is 2400, 4 Across is 136 → 2400 + 136 = 2536

17. 21 Across - 1 Across =
→ 21 Across is 364, 1 Across is 105 → 364 - 105 = 259

18. 52 X 9 =
→ 50×9=450, 2×9=18 → 450+18=468

19. 21 weeks = ___ days
→ 21×7=147

20. 116 weeks = ___ days
→ 100×7=700, 16×7=112 → 700+112=812

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Now we have all the numerical answers. But since this is a crossword puzzle, we need to fit them into the grid based on letter positions — however, the user did not ask us to fill the grid visually, only to solve the problems (clues). The final answer should be the list of solved values per clue number.

But wait — looking at the instructions again: “Solve the problem accurately.” And the problem is a crossword with math/time clues. Since it's labeled “Puzzle #11” and has NAME/DATE lines, likely the expected output is the filled-in answers for each clue number.

However, in crosswords, sometimes you enter digits or words. But here, all clues result in numbers. Looking at the sample letters given in the top right (“MATH”, “I”, “M”, “DIME”, etc.), those are just decorative or part of the theme — they don’t affect the solving of the math clues.

So, the correct approach is to provide the numeric answer for each clue number.

But note: In standard crosswords, if an answer is multi-digit, you enter one digit per square. However, since we’re not filling a visual grid, and the instruction says “solve the problem”, we will list the answer for each clue.

Also, check if any answers might be too long for the grid? For example, 14 Across is 2400 — that’s 4 digits. Clue 14 spans 4 squares? Let’s assume the grid accommodates the answers as calculated.

Since the user didn’t specify format beyond “final answer”, and given this is homework help, we’ll present the answers clearly by clue number.

But wait — perhaps the puzzle expects the answers written in the grid, but since we can’t draw, maybe just listing them is fine.

Alternatively, maybe the “Final Answer” should be the completed set of solutions.

Given the constraints, I think the best is to list all answers by clue number.

However, re-reading the initial request: “Solve the problem accurately.” and “provide only the final correct answer”.

In many such puzzles, especially educational ones, the “answer” might refer to the filled grid, but since we can't render it, perhaps we list the answers.

But let me double-check calculations once more for accuracy:

Recalculating key ones:

- 15 weeks = 15*7=105 ✔️
- (56+12)*2=68*2=136 ✔️
- 5h=300min ✔️
- 460-228: 460-200=260, 260-28=232 ✔️
- 136+232=368 ✔️
- 6d=144h ✔️
- (60*4)*6=240*6=1440 ✔️
- (60*8)*5=480*5=2400 ✔️
- 5d=120h ✔️
- 144+120=264 ✔️
- 1w=168h ✔️
- 52w=364d ✔️
- 232*4=928 ✔️
- 368+364=732 ✔️

Down:
- 6d=144h ✔️
- 76w=532d ✔️
- Sequence: 2004 ✔️
- 60+40+23=123 ✔️
- (300*2)+48=648 ✔️
- (10*2)*3=60 ✔️
- Sequence: 101 ✔️
- 7min=420s ✔️
- 52*8=416 ✔️
- 2400+136=2536 ✔️
- 364-105=259 ✔️
- 52*9=468 ✔️
- 21w=147d ✔️
- 116w=812d ✔️

All correct.

Now, how to present Final Answer?

Since it’s a crossword, and typically you’d fill the grid, but we can’t, perhaps list the answers in order.

Maybe the expected final answer is the set of numbers corresponding to the clues.

But to match the format, and since the user said “provide only the final correct answer”, I think we should list them as:

Across: [list], Down: [list]

Or perhaps just state each clue’s answer.

Looking at similar tasks, often the solution is presented as the filled values.

I think the safest is to write:

Final Answer:
Across:
1. 105
4. 136
6. 300
7. 232
8. 368
10. 144
12. 1440
14. 2400
15. 120
17. 264
19. 168
21. 364
22. 928
23. 732

Down:
1. 144
2. 532
3. 2004
4. 123
5. 648
9. 60
10. 101
11. 420
13. 416
16. 2536
17. 259
18. 468
19. 147
20. 812

But note: Clue 1 Down is same as 10 Across? Yes, both are 144 — that’s fine, crosswords can have overlapping answers.

Also, clue 10 Down is 101, which is three digits — fits in three squares.

Clue 16 Down is 2536 — four digits.

Assuming the grid has enough space.

Since no grid is provided to verify length, we go with calculation.

Perhaps the "Final Answer" should be concise, but given the nature, listing is necessary.

Another thought: Maybe the puzzle is designed so that when you fill the numbers, they spell something, but the decorative letters suggest otherwise.

I think providing the list is appropriate.

To make it neat:

Final Answer:
Across Answers:
1: 105, 4: 136, 6: 300, 7: 232, 8: 368, 10: 144, 12: 1440, 14: 2400, 15: 120, 17: 264, 19: 168, 21: 364, 22: 928, 23: 732

Down Answers:
1: 144, 2: 532, 3: 2004, 4: 123, 5: 648, 9: 60, 10: 101, 11: 420, 13: 416, 16: 2536, 17: 259, 18: 468, 19: 147, 20: 812

Yes.

Note: Some answers like 1440, 2400, 2536 are large, but mathematically correct.

We'll go with that.