How to Use Math Equation & MathType in Word for Math & Chemistry (Video in Khmer)

Hello everyone! If you are teacher, student, or office worker who needs to type math exam papers, physics formulas, or chemistry equations in Microsoft Word — today tutorial is for you!

Many people struggle typing fractions ($\frac{a}{b}$), square roots ($\sqrt{x}$), integrals ($\int$), or chemical reactions ($H_2O$). Today I show you how to do it super fast using Word Math Equation and MathType! Let go learn!

Part 1: How to Use Built-in MS Word Math Equation

Microsoft Word has a built-in Equation Editor that lets you insert professional math symbols without installing extra software.

Step-by-Step Instructions:

1. Click where you want to insert the formula.
2. Press shortcut key Alt + = on your keyboard (or go to Insert tab => click Equation).
3. A new Equation Box appears on your page, and the Equation tab opens on top menu.
4. Choose structures from the top bar:

• Fraction ($\frac{x}{y}$) for division fractions.
• Script ($e^{x}$ or $x_1$) for powers and subscripts.
• Radical ($\sqrt{x}$) for square roots.
• Integral ($\int$) and Matrix for advanced math.

1. Type shortcut names like \pi and press Space to get $\pi$, or \alpha to get $\alpha$!

> 💡 Tip: Always press Alt + = to open Equation box instantly. It is 5x faster than clicking menus!

📺 Video 1: Techniques to Write Math Formulas with Math Equation (Khmer)

Part 2: Fast Math Typing with MathType Plugin

If you need to type hundreds of math equations every day (like math exam papers), MathType plugin is the ultimate tool.

Why Use MathType?

• Has a dedicated tab bar inside Word.
• Allows instant shortcuts for fractions, limits, and matrices.
• Looks ultra-clean when printing exam sheets.

How to Use MathType:

1. Install MathType software on your computer.
2. Open Word => click MathType tab on top ribbon.
3. Click Inline or Display to open MathType editor window.
4. Type your formula using keyboard shortcuts and close window to insert into Word automatic!

> 💡 Tip: In MathType, press Ctrl + F for fraction, Ctrl + R for square root, and Ctrl + H for superscript power!

📺 Video 2: Fast Math Typing with MathType in Word (Khmer)

Part 3: Writing Chemistry Formulas & Reaction Equations

Writing chemical formulas like $H_2O$, $CO_2$, or $2H_2 + O_2 \rightarrow 2H_2O$ requires subscript numbers and reaction arrows.

Fast Chemistry Typing Tips:

• Subscript Number — type H, press Ctrl + =, type 2, press Ctrl + = again, type O $\rightarrow$ $H_2O$.
• Superscript Ion Charge — type Ca, press Ctrl + Shift + +, type 2+ $\rightarrow$ $Ca^{2+}$.
• Reaction Arrow — inside Equation Box (Alt + =), type \rightarrow and press Space to turn into $\rightarrow$.

> 💡 Tip: You can also use Font section on Home tab to click $X_2$ (Subscript) or $X^2$ (Superscript) for quick text formatting!

📺 Video 3: Tips for Fast Math & Chemistry Equations in Word (Khmer)

Quick Summary & Keyboard Shortcuts

• Alt + = — Insert Math Equation box in Word.
• Ctrl + = — Toggle Subscript (for $H_2O$, $CO_2$).
• Ctrl + Shift + + — Toggle Superscript (for $x^2$, $Ca^{2+}$).
• \fraction or a/b — Type a/b and hit Space inside Equation box to turn into $\frac{a}{b}$.

> 💡 Tip: If your formula font looks strange, select the equation and switch between Linear and Professional display on the Equation tab!