1. How To Use The TI 15 Calculator

2. Basic Steps This Presentation is a basic review of some of the functions of the TI-15 Calculator. We Will Review How To: Divide (with Decimals & with Remainders) Divide (with Decimals & with Remainders) Order of Operations Order of Operations Exponents Exponents Rounding Rounding Fractions Fractions Improper Fractions Improper Fractions Mixed Numbers Mixed Numbers Conversions Conversions Fraction to Decimal Decimal to Fraction Percents to Decimals and Fractions Fractions and Decimals to Percents Rounding Rounding Games Games

3. Division This Key will give you an answer in decimal form 724 ÷ 43 = 724 ÷ 43 = This Key will give you an answer with a remainder 724 ÷ 43 = 724 ÷ 43 = 16.837209316r36

4. Order of Operations 26 + 3 x 5 – (12 + 8 ÷2) = If you type this problem EXACTLY as it is written into the calculator, including parentheses, it will give you the correct answer. Use the Parentheses Buttons Use the Parentheses Buttons 25

5. Exponents 3 5 = If you type in 3 ^ 5 this will solve this type of problem for you. 12 5 243248832

6. Rounding 234 ÷ 7 If you hit the Fix Button then press which place you want to round this number to. Round it to the nearest hundredths Round it to the nearest hundredths Type in 234 ÷ 7 again but this time round it to the nearest whole number 33.428571433.43

7. Fractions To get this fraction to show up on your screen, do the following: 1. Press 3 2. Press the n 3. Press 1 0 4. Press d or Enter Try some more

8. Fractions This fraction needs to be simplified Just press the Simp button.

9. Fractions This fraction is improper No problem, there is a button for that too! It is the button to the right of the n button Press it and it will change it to a mixed number.

10. Fractions In order to type in a mixed number you have to separate the whole number and the fraction. No problem, there is a button for that too! It is the button to the left of the n button. It says Unit You will press: 5 Unit Unit 3 n 8 enter enter

11. Fractions To Decimals Type this into your calculator. If you press the F – D button, this will automatically convert this fraction to a decimal. 0.875

12. Decimals to Fractions This also works the other way around as well. Type in 0.625 into the calculator and press enter. Press the F-D button. Try These: 0.45 0.45 0.8 0.8 0.625

13. Rounding Use the fix button. 2/3 Change to Decimal Fix0.01 Rounding to the hundredths Rounding to the hundredths 2323.67

14. Games Maze Key Mode Down arrow Enter Mode

15. You now know all the basic skills needed to use this calculator.