Saturday, July 25, 2009

Even Better Calculator Trick

We explored a "different ways of payment" problem and learned a new calculator trick to boot. Suppose plan A gives you $20 the 1st day and increases your salary by $1 per day. Suppose plan B gives you $0.01 the 1st day and doubles your salary every day.

{1, 20, 0.01} (to represent 1st day, plan A, plan B)
ENTER, ENTER, ENTER, ..... to keep seeing current day, plan A, plan B updates.

Nice. And sandwiched between 2 nice pictures of a recent trip.


  1. Ooh, you're teasing us! Where'd you go? ;^)

  2. Actually, I do have a comment about the math... :^>

    If you add $10 a day in Plan A, it sounds even better, but it only takes a few more days...

    Thanks for the cool calculator trick!

  3. Anonymous11:12 PM

    I loved that calculator coolness. Hope you can use it .... and this is a beautiful island in the Bahamas. Tons of gorgeous warm baby blue water and breezy lush days.

    Ms. Cookie

  4. Ms. Cookie, I mentioned this post on my blog, Math Mama Writes.