Exercise · L0

Name the beam and active position

abacus-orientation recall 3 min

L0Level

abacus-orientationSkill

recallType

3mTime

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Best for focused single-question practice and careful method review.

Practice rule: try this before opening the hint or answer.

Explain what the beam does and when a bead becomes active.

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1. Solve first 2. Write your response 3. Verify or reveal

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