1QUESTION 1 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
3,000
Cheerios
How to estimate it
Fermi’s official “Napkin math”
A cup of Cheerios weighs about an ounce, so a 12 oz box is roughly 12 cups. How many little Os fill one cup? A few hundred, call it 300.
- Cups in the box
- ~12
- Os per cup
- × 300
- 12 × 300
- ≈ 3,600
The box holds 340 grams. How much does one O weigh? Next to nothing, maybe a tenth of a gram.
- Box weight
- 340 g
- Weight of one O
- ÷ 0.1 g
- 340 ÷ 0.1
- ≈ 3,400
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Cheerios in one cup (Bedtime Math hand count)
- 252
- One cup of Cheerios (General Mills serving weight)
- ≈ 28 g
- Cups in a 340 g box
- 340 ÷ 28 ≈ 12
- 252 × 12
- ≈ 3,000
Reference cited by Fermi: Bedtime Math hand count (252 Cheerios in one cup) · General Mills Cheerios nutrition label
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