You may want to let them try and work out how long it will take you to travel somewhere when you get in the car, by telling them what speed you'll be traveling and how far away your destination is.
Treat math as part of playtime _ This is an extension of number 2. This should alert you that you can take math outdoors. As you walk or bike outside you will notice the house numbers on both sides of the street. Use this as an opportunity to explain odd and even numbers. Encourage kids to count their toys, such as cars, dolls, action figures, Lego pieces. Purchase stimulating toys such as puzzles and spatial toys such as shapes and blocks to bring out that interest in geometry. This allows you to integrate math without appearing to be pressuring them to learn.