Addition

In this video, Emily uses an addition fact to solve a subtraction problem.

In this video, Jada uses an addition fact and counting cubes to solve a subtraction problem.

In this video, Alex learns how to use doubles to solve a series of addition problems.

In this video, Marta learns to fill a 10-frame model to solve an addition problem.

In this video, Marta learns how to use 10-frames and counters to solve an addition problem.

In this video, Carlos uses addition facts and sentences to solve subtraction problems, and learns that addition facts and subtraction facts are related.

In this video, Jada learns to add two numbers using tens and ones on a hundred chart.

In this video, Daniel learns how to add multiple 2-digit numbers using place value, tens and ones.

In this video, Marta learns how to regroup tens into ones in order to solve subtraction problems.

In this video, Alex learns how to add 3-digit numbers uses mental math to add hundreds.

In this video, Alex learns to add 3-digit numbers using hundreds and tens.

In this video, Alex learns how to use place values to add 3-digit numbers.