1
Read the shape
Read the factor sizes before multiplying. 1d × 1d (easy).
Level 1 - foundation
6 visual blocks - left-to-right train
Read the factor sizes before multiplying. 1d × 1d (easy).
Split, scan, then normalize.
Start from the left edge.
Estimate with rounded factors.
Beat the clock with checked answers.
Use a named shortcut when the shape is obvious.
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