B
Builder schoolBlock Builder
Current goal
Build 1 of 4
Challenge 20
Growing arrays
Streak⚡0
Best0
Tables0/11
Build 1 · Predict, then stack
Plan a 3 × 4 floor
How many blocks will the finished rectangle use?
Build zoneTarget · 3 rows × 4 columns
2 wide
2 tall
2 wide × 2 tall = ? blocks
