Addition of 3-digit numbers (Left to Right)

Subtraction with Regrouping  (Minus 1)

2-digit by 2-digit Multiplication (Rainbow Method)

 3-digit by 3-digit Multiplication (Shortcut)

 Division by 5 (Double Trouble)

 Finding the Unknown Side of a Rectangle with a Given Perimeter

 Elapsed Time (UnMask Zorro)

Addition & Subtraction of Fractions (Butterfly Method)

Changing Fractions to Decimals 

Division of Decimals 

Division of Fractions (KCF)

Finding the LCM (Shortcut)

Exponent of 2 (Square Trick)

Exponent of 2 (Square Trick)

Percentage (Shortcut)

Corresponding & Alternate Angles (F**the Z)

 Sum of Interior Angles of Polygons