[Free Registration/Login may be required to access all resource tools.] The resource begins with a video that describes and shows the process of adding money by lining them up in columns. The pictures included in the video and the...

Students add two-digit numbers with these interactive flashcards. The resource demonstrates how to carry a "1" in the tens or hundreds column.

Explains how to add two-digit numbers by focusing on each column of digits as you add, rather than the entire numbers.

Explains how to add three-digit numbers by focusing on each column of digits as you add.

Students can practice lining up decimals while adding money amounts in this interactive web lesson.

Magic squares have been a fascinating topic in mathematics for centuries. They are formed by filling in all the squares with the numbers starting from one so that the sum of all rows, columns, and diagonals is the same. Instructions are...