Subtracting larger numbers in your head is not always easy, so you can use the column method to take one number away from another. You write the larger number above the smaller number, so that the ...

The common-core math standards require that students learn the standard algorithm for multi-digit adding and subtracting—you know, the process in which you line the numbers up vertically to add or ...

Practical experience using everyday objects is best for understanding adding and subtracting, as Sheila Ebbutt and Carole Skinner explain. One way that children learn about addition is through ...

Your child continues to use tape diagrams as a visual tool to solve word problems. Your child continues to use tape diagrams as a visual tool to solve word problems. Now, he solves for an unknown in ...

The goats and their friends are having a party, but they need your help to reach the piñata. As a team, use your knowledge of thousands, hundreds, tens and ones place values to help the goats release ...