Use a mouse or touchpad to drag and drop the correct number bubble onto the matching tiles to solve the expressions.
Hidden beneath tiles displaying subtraction problems lies a secret bird image. Players drag the right number bubbles onto the corresponding tiles to solve each equation. With every correct answer, the tiles fade to slowly uncover sections of the hidden illustration. Success depends on solving every problem—only then does the full picture emerge in vivid detail, rewarding players with the complete reveal of the artwork.
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