**How To Be A Math Genius is now available.**

Learn tricks like how to calculate a date's day of the week, how to multiply two three-digit numbers, how to test divisibility, and how to divide accurate to a large number of decimal places!

Click here to download.

App Contents:

(contents shown in black are available in the app for free)

(contents shown in red are available in the app through In-App Purchases)

- Instructions and Glossary
- Multiplying Two Numbers
- Method 1: Slide Method
- Method 2: Stretch Out Method
- Method 3: Add First Method
- Method 4: Straight Down Method
- Method 5: Proportional Stretch Out Method

- Squares
- Method 1: Double First
- Method 2: Minus Half Estimate, Times Twice Estimate
- Method 3: Square Estimate First

- Almost Round Multiple Method
- 12 Multiplication Table
- Multiplying Three Numbers
- Cubes
- Method 1: Normal Three-Way Method
- Method 2: Change To Consecutive Numbers
- Method 3: Expanded Polynomial

- Checking Your Work
- Divisibility Test
- Alteration Test

- Division
- Expressing Quotient as Integer and Remainder
- Expressing Quotient as Decimal

- Decimal To Fraction
- Divisibility Rules
- Days Of The Week
- Adding Many Numbers
- Counting
- The Middle
- Mark Every 5
- Checkpoints
- Draw A Line
- Arrange Into Triangles Or Squares

- Special Cases
- Multiplying By Multiple Of 9
- Multiplying By Multiple Of 11
- Multiplying By 143
- Method 1: Divide By 7 First
- Method 2: Separate Hundreds Place
- Method 3: Multiply By 1,001 First

- Multiplying By A Number Ending In 5
- Same Tens Place, Ones Place Adds To 10
- Midpoint Divisible By 10
- Multiplying Numbers Close To 100
- Adding Consecutive Numbers
- Adding Almost Consecutive Numbers