As long as it's really quick it doesn't matter how you get there!
bridging through ten and number bonds is fast and efficient,
You can play games to speed up. Using playing cards ( or 0-9 dice) generate 2 or3 digit numbers ,first to 150 gets a point. if you feel you have the advantage you can always start off by giving a point to you if they get it wrong , point to them if they are correct.http://www.amblesideprimary.com/amblewe ... rbond.htmlhttp://resources.oswego.org/games/ghost ... nores.html
only go to 100, but still good