Explains the concept of zero in mathematics, emphasizing its role as a number that represents the empty set. It illustrates how zero is used in addition and subtraction, showing that adding or ...

In addition to these cards, there is a card listing "Basic Addition Facts" (written vertically, with answers) and "Basic Addition Combinations" (written vertically, without answers). Four cards give ...

Join Mrs. Gray for Numeracy Talk with Dotson working on conservation to 10.

Kevin Dykema, a math expert, shares strategies for teachers to help students tackle word problems.

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 ...

Twenty-four first-grade children were asked to write number sentences and select appropriate alternative number sentences for addition and subtraction word problems. Responses were qualitatively ...