Let’s go step by step to solve each clue using the numbers given:
915, 400, 50, 425, 875, 99
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Clue 1: A number greater than 900
Look at all the numbers. Which one is bigger than 900?
→ 915 is greater than 900. (Others are 400, 50, 425, 875, 99 — all less than 900)
✔ Answer:
915
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Clue 2: A number between 400 and 450
“Between” means more than 400 but less than 450.
Check:
- 400 → not *between*, it’s equal to 400
- 425 → yes! 400 < 425 < 450
- Others: 915, 50, 875, 99 → no
✔ Answer:
425
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Clue 3: A number that has five tens
“Five tens” = 5 × 10 = 50
So we’re looking for a number that equals 50 or has 50 as its tens part?
But look at the list: 50 is there. And 50 literally means “five tens”.
Also check others:
- 915 → 1 ten? No, 1 ten is 10, but 915 has 1 ten in the tens place? Wait — let’s think simply.
The clue says “has five tens” — meaning the value of the tens digit is 5? Or the total tens in the number?
Actually, in elementary math, “a number that has five tens” usually means the number is 50. Because 5 tens = 50.
Also, 425 has 2 tens (since 425 = 400 + 20 + 5), so not 5 tens.
Only 50 fits perfectly.
✔ Answer:
50
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Clue 4: A number with no tens or ones
That means the last two digits are zero. So it ends with “00”.
Look:
- 400 → ends with 00 → no tens, no ones → perfect!
Others:
- 915 → ends with 15 → has tens and ones
- 50 → has 5 tens, 0 ones → has tens → no
- 425 → has 2 tens, 5 ones → no
- 875 → 7 tens, 5 ones → no
- 99 → 9 tens, 9 ones → no
✔ Answer:
400
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Clue 5: A number that has 8 hundreds
“8 hundreds” = 800
Which number is in the 800s?
→ 875 → yes
Parent Tip: Review the logic above to help your child master the concept of number detective worksheet.
