This Maths article demonstrates how to add numbers with up to 4-digits together.

Activity: Adding 2-digit numbers Complete this interactive activity to learn more about adding numbers using column addition and then put your knowledge to the test with a quiz.

Credit: BlackJack3D/E+ via To many, AI is just a horrible Steven Spielberg movie. To others, it's the next generation of learning computers. But what is artificial intelligence, exactly?