Two to the … s

Two-to-the

Let your students practice exponents, fractional exponents, and roots with this powerful assignment that asks them to compute impressive mathematics in their heads.

If you list the values of various 2 to the ... s

     2^8 = 256
     2^{12} = 4,096
     2^{14} = 16,384
     2^{20} = 1,048,576
     2^{28} = 268,435,456

then you can ask students to calculate all kinds of amazing math in their heads.  It's like magic!

 256\times4,096

\displaystyle \frac {1,048,576}{4,096}

or   \sqrt {268,435,456}

 two-to-thes2.pdf

For members we have an editable Word doc and solutions.

two-to-thes2.doc       two-to-thes2-solution.pdf

Quadratic formula on your calculator

You can program your TI calculator so that a quadratic equations can be solved quickly by just plugging the X ² coefficient, the X coefficient, and the constant into your calculator.

Arrange your equation in this form:

AX² + BX + C = 0

Program your calculator according to the following directions.

And you are all set to solve.