For calculator TI-30X II S My solutions only come out in the tenth's place if its a decimal. for example: 0.123 will only show as 0.1

You've got two different issues here.

Square root of 39 IS the exact answer, as the result will be a surd (an irrational number with too many - or potentially infinite decimal places).

If you have been asked to round or show your answer to a number of decimal places then you use the answer toggle (the opposing arrows button above enter) to receive an approximation - a rounded answer (6.24 to two d.p. if you were to multiply these together you will see it is close to 39, but not EXACT, because it has been rounded already). You can also press the answer toggle again to see a longer decimal, but again this is rounded and not exact

Press the key that is marked with a small circle, an apostrophe, and a double quotation mark. That is the DMS key. You can use it to convert from Decimal degress to DMS and back.

Use the ^ key, located above and left of the 7 key. For example, to calculate 2 raised to the 120 power, press 2 ^ 1 2 0 =

The +/- key on the ti-30x is to let the calculator know whether the number you are using is positive or negative. EX: 4 3 2 1 = positive -4 -3 -2 -1 = negative

The following examples will demonstrate how to convert decimals into fractions using the TI-30Xa and TI-30Xa Solar. Please be aware that TI-30Xa Solar School Edition calculators do not have this functionality.

Example: Convert .25 to 1/4
- Input .25, press [2nd][<--] (says F<>D above it).

** F<>D means fraction to decimal, decimal to fraction.

Example: Convert 1.38 to 1_19/50

- Input 1.38, press [2nd][<--].

Example: Convert 9.75 to 9_3/4

- Input 9.75, press [2nd]{<--].

You need to set the number of decimal places to 1 or more.

• Press [2nd] [MODE] and scroll to FLOAT.
• Press the right arrow key until the number of decimal places needed is highlighted.
• Press the [ENTER] key.

For 2 decimal places, 2 should be highlighted. All answers will then be rounded to 2 decimal places.

• Press [2nd] [QUIT] to return to the home screen.

what ever the decimal is all you have to do is multiply by 100 and you have your percent or you can just move the decimal to the right two places either way is the same.

Your BA II PLUS stores numeric values internally to an accuracy of 13 digits. However, the numbers it displays depends on the number of decimal places to which you have it set (choice of 0–9 or floating decimal). To set the number of decimal places displayed to three: hit [2ND][FORMAT][3][ENTER]This setting also continues indefinitely (even though the calculator is turned off and on) until it is changed.

2ND [FIX] 4

Hit "Fix" then the number of decimal places you want.