Teach your children 4th grade math skills like fractions, multiplication and division. In fourth grade, students learn to solve multi-step word problems and deepen their understanding of fractions.

They should use mental math, and other strategies, to add. Crazy! I am so outraged that I have decided my child is NOT going to public schools until Common Core falls flat.

Mental math isn’t as difficult as it might sound, and you may be surprised at how easy it is to make seemingly impossible calculations using nothing but your beautiful brain. You just need to ...

SUMMERS: The 14-year-old from India has set the Guinness World Record for mental calculation. SHAPIRO: He's been dubbed the human calculator and can solve complex math problems in his head in seconds.