Match fun story problems with the correct addition or subtraction expression. Join Mrs. Gray for number talk with the Counting Buddy Junior. Then get ready to match fun story problems with the ...

Now that you've learned to do basic math in Excel, your calculations will never slow you down again. With addition, subtraction, multiplication, and division at your fingertips, Excel can become ...

Count back & use the relationship between addition and subtraction to subtract within 20.

From classrooms to kitchen tables, debates about math education are never far away. Should teachers drill multiplication ...