# calculator skills fractions

TLDRThis tutorial focuses on calculator skills for the Casio FX 300ms, used in middle school math classes. It demonstrates how to clear the calculator's memory, enter fractions, simplify them, and convert between mixed numbers, improper fractions, and decimals. The video also covers how to input negative fractions and numbers, and switch between different formats using the fraction and shift buttons.

### Takeaways

- 🔑 To clear the memory on the Casio FX 300ms calculator, use the 'shift' and 'mode' (also 'Clear') buttons, then select option 3 and press 'equals'.
- 📱 The 'a b / c' button on the calculator is used to enter fractions.
- ✅ To type a fraction like one-third, input the numerator, press the fraction button, then the denominator.
- 🔄 Pressing 'equals' after entering a fraction simplifies it if possible.
- 🔢 The calculator can convert fractions to decimals by pressing the fraction button again.
- 🎓 To enter a mixed number, type the whole number, press the fraction button, then the numerator and denominator of the fractional part.
- 🔄 Use the 'shift' and 'fraction' buttons to convert mixed numbers to improper fractions.
- 🔀 The calculator can switch between decimal, mixed number, and improper fraction displays using the fraction button.
- ➕ To input a negative fraction, use the negative sign button located on the keypad.
- 🔁 The calculator can convert negative mixed numbers to decimals or improper fractions using the fraction button.

### Q & A

### What is the purpose of the video?

-The purpose of the video is to teach middle school students, specifically seventh-graders, how to use a Casio FX 300MS calculator for various calculator skills, with a focus on handling fractions.

### Which calculator model is featured in the video?

-The calculator model featured in the video is the Casio FX 300MS.

### How can you clear the memory on the Casio FX 300MS calculator?

-To clear the memory on the Casio FX 300MS, press the 'shift' button followed by the 'mode' button, which also serves as the 'Clear' button. Then select option 3 to reset all settings.

### How do you enter a fraction like one-third on the calculator?

-To enter one-third, first type '1', then press the fraction button (A B / C), and finally type '3'.

### What does the calculator do when you press 'equals' after entering a fraction?

-When you press 'equals' after entering a fraction, the calculator simplifies the fraction if possible.

### How can you change a fraction to a decimal on the calculator?

-To change a fraction to a decimal, first display the fraction on the screen, then press the fraction button again.

### How do you enter a mixed number on the calculator?

-To enter a mixed number, type the whole number, then press the fraction button followed by the numerator and denominator of the fractional part.

### What does the 'D over C' button combination do on the calculator?

-The 'D over C' button combination, accessed by pressing 'shift' and then the fraction button, converts a mixed number to an improper fraction.

### How do you type a negative fraction on the calculator?

-To type a negative fraction, use the negative sign button located above the keypad, then enter the fraction as you normally would.

### What happens when you press the fraction button after entering a negative mixed number?

-After entering a negative mixed number, pressing the fraction button cycles through different representations: mixed number, decimal, and improper fraction with the negative sign in front.

### What is the significance of the 'shift' button in the context of the calculator?

-The 'shift' button is used in combination with other buttons to access additional functions, such as clearing the memory or converting mixed numbers to improper fractions.

### Outlines

### 📚 Introduction to Casio FX 300MS Calculator

This video segment provides an introduction to the Casio FX 300MS calculator, which is used in middle school West seventh-grade math classes. The presenter demonstrates how to turn on the calculator and clear its memory using the 'shift' and 'mode' buttons. The video also covers how to enter fractions, simplify them, and convert them into decimals or improper fractions using the 'fraction' button. Additionally, the presenter explains how to input mixed numbers and negative fractions, and how to toggle between decimal and improper fraction formats using the 'fraction' button with the 'shift' function.

### Mindmap

### Keywords

### 💡Calculator

### 💡Shift Button

### 💡Mode Button

### 💡Fraction

### 💡Simplify

### 💡Decimal

### 💡Mixed Number

### 💡Improper Fraction

### 💡Negative Fraction

### 💡Function

### Highlights

Introduction to calculator skills for middle school math using Casio FX 300ms.

How to clear the calculator's memory for a fresh start.

Using the shift and mode buttons to access the clear memory function.

Resetting the calculator to its default settings.

Entering fractions into the calculator using the a/b/c button.

Demonstration of entering the fraction one-third.

Simplifying fractions using the calculator's equal button.

Changing the display of fractions to decimals.

Entering mixed numbers and their display on the calculator screen.

Converting mixed numbers to improper fractions using shift and fraction buttons.

Switching between decimal, mixed number, and improper fraction formats.

Entering negative fractions and numbers using the negative sign button.

Displaying and converting negative mixed numbers to decimals and improper fractions.

Practical applications of these calculator skills in math class.

The importance of mastering fraction entry for solving math problems.

Overview of the major skills discussed for working with fractions on the calculator.