The whole right side of the calculator only divides and doesn't perform the correct funtion

There is no such thing as a TI89 Plus Silver Edition.

If you mean the TI-89 or TI-89 Titanium, press diamond / (the diamond key below the 2ND key, then the divide key).

If you mean the TI-83 Plus Silver Edition or the TI-84 Plus Silver Edition, press MATH left-arrow 4 .

Press "mode", "(down arrow)", "enter"


You're welcome.

To calculate 140 to the 27th power, press
1 4 0 ^ 2 7 ENTER

^ is the key just above the divide key.

There isn't one. If you want to convert a value from decimal to fraction, use the >Frac function (press MATH 1). If you want to enter a fraction, simply enter the numerator, divide, then the denominator.

For example, to calculate 1/4 + 1/3, press
( 1 / 4 ) + ( 1 / 3 ) MATH 1 ENTER
and you'll see 7/12.

Sorry to disappoint you but the % key or command does not exist on the TI83/84 family of calculators. Just divide or multiply by 100 depending on which way you are going: From % to decimal or decimal to %.
Simpler still move: decimal mark two places to left (% to decimal) or to right (decimal to %).

Having gone over a month with no response, I assume this is no longer a problem.

(2m^3)(3m^-1)^3/(3n^3)(5n^2)'

Check the following:

TI-84 Plus TI-84 Plus Silver Edition Guidebook

TI-84 Plus TI-84 Plus Silver Edition Guidebook

Introduction tothe TI-83 Plus and TI-84 Plus



A collection of activities for the TI-83 and TI-84 Plus


Part II: Texas Instruments TI-83, TI-83 Plus, TI-84 Plus Graphics

there is a nice tutorial on prenhall.com
this works for ti 83, 83+, 84, 84+ and 84+ silver

just reset your calculator 2nd + 7 1 2