Calculator Tricks

Magic Buttons for the TI-30Xa

Squares

• Squared• 52

• A = s2 (area of a square)

Find the following:

1. 12 squared

2. Area of a square with

sides of 4 in

3. 162

Square Roots

25

Square root of 9

Find the following square roots:

1. 196

2. 400

3. sq rt of 132

Which are perfect squares?

Exponents• 75

• Cubed ~ 83

• 6.2 x 106

Evaluate the following:

1. Find 2 cubed

2. 55

3. 1.09 x 104

Pi• Pi• é• 3.14 or 22/7

What is pi?

é =

Using Pi

1. Find the area of a circle with

a radius of 5.1 km.

2. What is the circumference of

a circle with a diameter of 11

½ ft?

Formulas