Xtramath is a program online that helps students learn their math facts. I am a strong believer that students need to have a solid base in their math facts. If students do not memorize their facts, they often struggle in later in math classes. Now that common core is in effect all over the country, the standards say that by the end of third grade, students should be fluent in their addition, subtraction, multiplication, and division facts.
Here is a video about xtramath.