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## Nancy from Blairsden-Graeagle, CA's Resources

The Tile company tiles rectangle areas. Ted lays the center tiles. Mary comes along and borders the area with gray tiles. ( For example, in a 1x3 area, Ted would lay the three center tiles and...

Yet another farm problem to set up and solve..... Tina looks out into the barnyard and sees pigs, chickens and ducks. She counts 38 heads and 86 feet. Knowing that that the sum of the number of...

Show algebraically why the following Number Trick always works? Choose any number; add 5; double the result; subtract 4;divide by 2;subtract the original number. the result is always 3.

A tile company makes rectangles tiles. Mary lays the center white tiles. JIM comes along and boarders the area with gray tiles. ( example would be 1x3 area. Mary would lay the 3 center tiles and Jim...

abc is any 3 digit number. Prove algebraically that abc is divisible by 9, if a+b+c is divisible by 9.  Is the number 684 divisible by 9? (6+8+4=18) yes it is, so how do you prove...

Tara looks out into the park and sees pigs. chickens and ducks. She counts 30 heads and 80 feet. The sum of the number of pigs and chickens is 6 more than the number of ducks. ( all animals have normal...

This is a toothpick problem     A grid is 6 squares by 6 squares  ( you have 36 squares) the vertical grid is n the horizontal grid is n  How many toothpicks...

A commuter travels to work at an average speed of u and returns home at an average speed v. Show that the average speed for the round trip is      2uv _______   ...

a Student sees rabbits, ducks and birds in the park. she counts 22 heads and 52 feet. students know that the number of birds is 2 more than the sum of the rabbits and ducks. how many of each animal...

AS i looked out into the park I saw rabbits and birds. I count 170 heads and 402 feet. How many rabbits and how many birds are there? (animals are normal, rabbit has 1 head-4feet and birds have 1...