Let’s solve this “Mystery Numbers” puzzle step by step. We are given a grid of 6 numbers:
>
915, 400, 50, 425, 875, 99
And 6 clues. For each clue, we must find the matching number from the grid and write it in the blank box.
---
Clue 1: A number greater than 900
Look at the numbers:
- 915 →
Yes, 915 > 900
- 400 → No
- 50 → No
- 425 → No
- 875 → No (875 < 900)
- 99 → No
✔ Answer: 915
---
Clue 2: A number between 400 and 450
Check which numbers fall between 400 and 450 (not including 400 or 450? Usually “between” excludes endpoints unless stated otherwise — but let’s check):
- 400 → Not *between* 400 and 450 (it’s the lower bound)
- 425 →
Yes, 400 < 425 < 450
- Others are outside this range.
✔ Answer: 425
---
Clue 3: A number that has five tens
This means the
tens digit is 5.
Break down each number:
- 915 → 9 hundreds,
1 ten, 5 ones → tens digit = 1
✘
- 400 → 4 hundreds,
0 tens, 0 ones → tens digit = 0
✘
- 50 → 0 hundreds,
5 tens, 0 ones → tens digit = 5
✔
- 425 → 4 hundreds,
2 tens, 5 ones → tens digit = 2
✘
- 875 → 8 hundreds,
7 tens, 5 ones → tens digit = 7
✘
- 99 → 0 hundreds,
9 tens, 9 ones → tens digit = 9
✘
✔ Answer: 50
*(Note: 50 = 5 tens + 0 ones)*
---
Clue 4: A number with no tens or ones
This means the number ends in
00 — i.e., it’s a multiple of 100.
Check:
- 400 → 4 hundreds, 0 tens, 0 ones →
✔
- Others: 915, 50, 425, 875, 99 all have non-zero tens or ones.
✔ Answer: 400
---
Clue 5: A number that has 8 hundreds
That means the hundreds digit is 8.
Check:
- 875 → 8 hundreds, 7 tens, 5 ones →
✔
- Others don’t start with 8.
✔ Answer: 875
---
Clue 6: A number closest to 100
Compare distances from 100:
- 99 → |100 - 99| =
1
- 50 → |100 - 50| = 50
- 400 → 300 away
- 425 → 325 away
- 875 → 775 away
- 915 → 815 away
✔ 99 is only 1 away — closest to 100
✔ Answer: 99
---
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✔ Final Answers (to write in the boxes):
1. A number greater than 900 →
915
2. A number between 400 and 450 →
425
3. A number that has five tens →
50
4. A number with no tens or ones →
400
5. A number that has 8 hundreds →
875
6. A number closest to 100 →
99
---
You can now color each matching number block in the grid with the same color as its clue box (as instructed). For example, color the "915" block the same color as the first clue box, etc.
Let me know if you’d like a visual key for coloring! 🎨
Parent Tip: Review the logic above to help your child master the concept of mystery math worksheets.
