Be positive about math _ Our kids like to imitate us; if we send a negative message to them about our own experiences they may simply accept it and believe their own experiences will be the same. So do not groan about how much you hated math in school and definitely do not make flippant comments like you were lucky you learned to count as that is all that you need in life.
Combine math with reading _ There are quite a few nice children's books out there about math and who does not like a deal. Imagine it's a 2 for 1 deal you are getting, with the opportunity for your kid to enjoy reading and math at the same time. The Sir Cumference series comes to mind with its attractive illustrations and adventures. Less than Zero is another. It gives a good introduction to the concept of negative numbers. Also One Hundred Hungry Ants appeals to kids too. Well who doesn't love bugs? Check out online stores where you can read reviews but remember to ensure that the reading level is not more advanced that necessary to get the math concepts across. If that is the case that will just take the fun out of it and make your children frustrated.