Finding maths.

Recently we've started giving K & M a monthly allowance in addition to their weekly pocket money. This was on the understanding that the things that we would usually give them extra money for, such as spending money on holiday, a couple of rides at the funfairs that occasionally come to town, money for birthday/Christmas presents for our 'little family', would no longer be forthcoming and they would be expected to pay for pretty much everything themselves. We would remind of birthdays or holidays that were coming up, so they could make sure they had notice to save up as necessary. This has lead to much adding up of money to see if they'd reached their target of holiday spending money (yes in M's case, nearly in K's but she will have done after next week's pocket money). Money is the most obvious way to get real maths into every day life, you'd be hard pressed to short change my girls these days!
Another obvious way is to get cooking, both K & M are pretty competent at weighing and measuring ingredients by volume and because we generally use 1/2 white, 1/2 wholemeal flour when baking they're pretty good at dividing by two.
Board games are something that we go through phases of playing an awful lot. The most popular games in recent times are Carcassonne, in which scoring is done in ones, twos and threes, and The Game of Life (both original and adventures edition), which involves money in tens and hundreds of thousands.
The things that has prompted me to post about this though is how percentages have cropped up. At the moment K is very keen on waving to thank drivers who stop for us at crossings and she likes to count how many acknowledge her wave. I'm happy to say it's the majority. The first time I became aware of her counting 3 out of 4 acknowledged her, so we talked about about how this is 3/4 which I commented was 75%. Her best score so far is 6/6, which is of course 100%, but apparently she can improve her score if she gets more people who all wave.