#8thGradeMath
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Why does 2 × 3E8 equal 6E8?

3E8 is calculator notation for 3 × 10⁸, or 300 million. Doubling 300 million produces 600 million:

2 × 3E8 = 6E8

A compact scientific-notation calculation with an enormous result.

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October 2, 2026 at 4:27 PM
puzzlevai.bsky.social
How can three characters represent roughly eight billion people?

8E9 is calculator notation for 8 × 10⁹.

Because 10⁹ equals one billion, 8 × 10⁹ equals eight billion. Scientific notation expresses enormous scale without writing every zero.

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September 30, 2026 at 1:31 PM
puzzlevai.bsky.social
Why does ∛27 = 3?

A cube root finds the equal edge length that creates a cube’s volume.

Since 3 × 3 × 3 = 27, a cube with a volume of 27 cubic units has an edge length of 3 units.

That’s why ∛27 = 3.

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September 27, 2026 at 6:16 PM
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June 2, 2025 at 11:00 AM