Math Cross Puzzle: Puzzle #11 | Education World - Free Printable
Educational worksheet: Math Cross Puzzle: Puzzle #11 | Education World. Download and print for classroom or home learning activities.
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Step-by-step solution for: Math Cross Puzzle: Puzzle #11 | Education World
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Show Answer Key & Explanations
Step-by-step solution for: Math Cross Puzzle: Puzzle #11 | Education World
Let’s solve this crossword puzzle step by step. We’ll go through each clue, do the math or logic needed, and fill in the answers. Then we’ll match them to the grid.
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ACROSS Clues:
1. 15 weeks = ___ days
→ 1 week = 7 days → 15 × 7 = 105
4. (56 + 12) × 2 = ___
→ 56 + 12 = 68 → 68 × 2 = 136
6. 5 hours = ___ minutes
→ 1 hour = 60 min → 5 × 60 = 300
7. 460 - 228 = ___
→ 460 - 228 = 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 × 4) × 6 = ___
→ 60 × 4 = 240 → 240 × 6 = 1440
14. (60 × 8) × 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 days × 24 = 168
21. 52 weeks = ___ days
→ 52 × 7 = 364
22. 7 Across × 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 Clues:
1. 6 days = ___ hours
→ Same as 10 Across → 144
2. 76 weeks = ___ days
→ 76 × 7 = 532
3. 2000, 2001, 2002, 2003, ___...
→ Next year is 2004
4. 60 + 40 + 23 = ___
→ 60 + 40 = 100 → 100 + 23 = 123
5. (500 × 2) + 48 = ___
→ 500 × 2 = 1000 → 1000 + 48 = 1048
9. (110 × 2) × 3 = ___
→ 110 × 2 = 220 → 220 × 3 = 660
10. 97, 99, ___, 103, 105...
→ Odd numbers increasing by 2 → missing is 101
11. 7 minutes = ___ seconds
→ 7 × 60 = 420
13. 52 × 8 = ___
→ 52 × 8 = 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 × 9 = ___
→ 52 × 9 = 468
19. 21 weeks = ___ days
→ 21 × 7 = 147
20. 116 weeks = ___ days
→ 116 × 7 = 812
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Now let’s double-check a few key ones for accuracy:
- 15 weeks = 105 days ✔
- (56+12)*2 = 68*2=136 ✔
- 5 hours = 300 min ✔
- 460-228=232 ✔
- 136+232=368 ✔
- 6 days = 144 hours ✔
- (60*4)*6=240*6=1440 ✔
- (60*8)*5=480*5=2400 ✔
- 5 days = 120 hours ✔
- 144+120=264 ✔
- 1 week = 168 hours ✔
- 52 weeks = 364 days ✔
- 232*4=928 ✔
- 368+364=732 ✔
Down:
- 6 days = 144 hours ✔
- 76*7=532 ✔
- Sequence: 2004 ✔
- 60+40+23=123 ✔
- 1000+48=1048 ✔
- 220*3=660 ✔
- Odd number sequence: 101 ✔
- 7*60=420 ✔
- 52*8=416 ✔
- 2400+136=2536 ✔
- 364-105=259 ✔
- 52*9=468 ✔
- 21*7=147 ✔
- 116*7=812 ✔
All calculations check out.
---
Final Answer:
Here are all the answers filled in order:
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. 1048
9. 660
10. 101
11. 420
13. 416
16. 2536
17. 259
18. 468
19. 147
20. 812
---
ACROSS Clues:
1. 15 weeks = ___ days
→ 1 week = 7 days → 15 × 7 = 105
4. (56 + 12) × 2 = ___
→ 56 + 12 = 68 → 68 × 2 = 136
6. 5 hours = ___ minutes
→ 1 hour = 60 min → 5 × 60 = 300
7. 460 - 228 = ___
→ 460 - 228 = 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 × 4) × 6 = ___
→ 60 × 4 = 240 → 240 × 6 = 1440
14. (60 × 8) × 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 days × 24 = 168
21. 52 weeks = ___ days
→ 52 × 7 = 364
22. 7 Across × 4 = ___
→ 7 Across is 232 → 232 × 4 = 928
23. 8 Across + 21 Across = ___
→ 8 Across is 368, 21 Across is 364 → 368 + 364 = 732
---
DOWN Clues:
1. 6 days = ___ hours
→ Same as 10 Across → 144
2. 76 weeks = ___ days
→ 76 × 7 = 532
3. 2000, 2001, 2002, 2003, ___...
→ Next year is 2004
4. 60 + 40 + 23 = ___
→ 60 + 40 = 100 → 100 + 23 = 123
5. (500 × 2) + 48 = ___
→ 500 × 2 = 1000 → 1000 + 48 = 1048
9. (110 × 2) × 3 = ___
→ 110 × 2 = 220 → 220 × 3 = 660
10. 97, 99, ___, 103, 105...
→ Odd numbers increasing by 2 → missing is 101
11. 7 minutes = ___ seconds
→ 7 × 60 = 420
13. 52 × 8 = ___
→ 52 × 8 = 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 × 9 = ___
→ 52 × 9 = 468
19. 21 weeks = ___ days
→ 21 × 7 = 147
20. 116 weeks = ___ days
→ 116 × 7 = 812
---
Now let’s double-check a few key ones for accuracy:
- 15 weeks = 105 days ✔
- (56+12)*2 = 68*2=136 ✔
- 5 hours = 300 min ✔
- 460-228=232 ✔
- 136+232=368 ✔
- 6 days = 144 hours ✔
- (60*4)*6=240*6=1440 ✔
- (60*8)*5=480*5=2400 ✔
- 5 days = 120 hours ✔
- 144+120=264 ✔
- 1 week = 168 hours ✔
- 52 weeks = 364 days ✔
- 232*4=928 ✔
- 368+364=732 ✔
Down:
- 6 days = 144 hours ✔
- 76*7=532 ✔
- Sequence: 2004 ✔
- 60+40+23=123 ✔
- 1000+48=1048 ✔
- 220*3=660 ✔
- Odd number sequence: 101 ✔
- 7*60=420 ✔
- 52*8=416 ✔
- 2400+136=2536 ✔
- 364-105=259 ✔
- 52*9=468 ✔
- 21*7=147 ✔
- 116*7=812 ✔
All calculations check out.
---
Final Answer:
Here are all the answers filled in order:
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. 1048
9. 660
10. 101
11. 420
13. 416
16. 2536
17. 259
18. 468
19. 147
20. 812
Parent Tip: Review the logic above to help your child master the concept of puzzle math worksheet.