Students put all their addition and subtraction skills together to solve equations.

Use Notice and Wonder with a 10-frame, connecting cubes, and place-value cards to ask and answer math questions. Then, represent teen numbers using addition and subtraction equations and one 10.

Inside a giant computer created before the age of mathemagicians, Olivia and Hassan are faced with a multi-step problem to reach the labyrinth’s next stage.

Having been transported to a floating library, Olivia and Hassan's ability to solve large equations using written methods is tested.