MATH DUCK 4: Subtraction Duck

GAME INFO
MATH DUCK 4: Subtraction Duck is the adventure game with the mathematical duck that helps you to practice subtraction in a fun way. You have 20 seconds to complete the subtraction equations in order by moving the duck with the arrow keys or the WASD keys to collect the numbers that correctly complete the subtractions shown at the top left of the screen. Move the duck to subtract and solve the operations to discover the key and open the door before you run out of time.