The Tutoring Center, Long Grove IL

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Tutoring in Long Grove, IL

04/16/2014
Q) Which of these have been on Earth longer - sharks or trees?

A)  According to the Smithsonian Magazine - (http://www.smithsonianmag.com/smart-news/respect-sharks-are-older-than-trees-3818/?no-ist), Sharks have been on Earth nearly 50 million more years than trees.  The first known...
03/11/2014
So How Many Total Squares (Of All Sizes) Are On An 8x8 Checkerboard?


Think of the number of 1x1 squares, 2x2 squares, etc.  Let's do the math in reverse order.  Do you see a pattern?
8x8 squares = 1
7x7 squares = 4
6x6 squares = 9
5x5 squares = 16
4x4 squares = 25
3x3 squares = 36
2x2 squares =...
02/25/2014
Are you wondering how this works out for any phone number?  Take a look at the steps below.  Assume the first three digits of your phone number are designated 'x' and the last four digits are designated 'y'.

1. Grab a calculator
2. Key in the first three digits of your phone number (NOT...
02/14/2014

Valentine's Day Riddle! There are 23 students in the fourth grade class. Each student gives every other student in the class a card. How many cards are exchanged?


The answer: 506
Each of the 23 students hand out 22...

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