The game features three main modes:

Calculate A: Players gather numbers and symbols to create equations that equal the number on Donkey Kong's sign. The last solution carries over to the next equation, promoting sequential problem-solving. Players can only use single-digit numbers, and the game ends when a player matches the target five times. Calculate B: Similar to Calculate A, but players start with an initial number in their equation, and negative numbers may appear on the placard. This mode introduces a bit more complexity and can be played competitively with a second player. +-×÷ Exercise: This mode focuses on practicing different operations, providing a more structured learning experience. The game combines platforming mechanics with math challenges, making it an engaging way for children to practice arithmetic skills while enjoying a familiar character from the Donkey Kong franchise. Its two-player mode adds a competitive element, encouraging collaboration or friendly rivalry. Overall, "Donkey Kong Jr. Math" stands out as an early attempt to blend gaming with education, appealing to both kids and nostalgic gamers.