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Mencal:Fantastic Mental Math Tricks

By INSTANT.CJ

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Description

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$1.99->$0.99 for limited time.Don't miss out.
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Mencal is an app help you expand your ability to mentally solve math problems. All of us can do simple addition and subtraction of one or two digit numbers without a calculator.Now mencal is here to kick that ability into overdrive.

Mencal provides you with lessons and simple tricks to allow you to: work with three digit numbers; fractions of different styles regardless if you are adding them or subtracting them; and finding sums with multiplication and division. Then it will test you on your grasp and knowledge of the methods you've learned.

• Example:
- Same ten's digit,1's sum to 10
38×32=1216
①:Multiply tens place digit by itself plus 1
(3+1)×3=12
②:Add two zeros to the end of step①
12<—00=1200
③:Multiply the two one's digits together
8×2=16
④:Add the results of step ②and③
1200+16=1216

• Quickly Square:
- Square numbers made up of 1's
- Square numbers made up of 3's
- Square numbers in the 90's
- Square numbers ten`s digit is 0
- Square a number ending in 25
- Square numbers made up of 6's
- Square numbers made up of 9's
- Square a number ending in 1
- Square a number ending in 5
- Square a number ending in 9
- Square numbers in the 10's
- Square numbers in the 40's
- Square numbers in the 50's
- Square numbers in the 500's
- Square numbers in the 600's
- Square numbers in the 700's
- Square numbers in the 800's
- Square numbers in the 900's

•Standard:
- Same ten's digit, 1's sum is 10
- Same ten's digit, 1's sum isn`t 10
- Same 1's digit, ten's digits sum is 10
- Same 1's digit, ten's digits sum isn`t 10
- two-digit number ab×cc (a+b=10)
- ab×ccc.....c (a+b=10)
- Multiply by 11
- 2-digit number if 1's digit is 1
- 2-digit number if tens place digit is 1
- 2-digit number ×2-digit number(universal)
- Multiply differing by 5
- Multiply differing by 6
- Multiply differing by 7
- Multiply differing by 8
- Multiply differing by 9
- Multiply differing by 10
- Multiply two numbers that in the 90‘s
- Two-digit number like ab+ba
- Three-digit number like abc+cba
- Two fractions like 1/a+1/b
- Two fractions like (a-1)/a + (b-1)/b
- Sum of first n odd numbers
- Sum of first n even numbers
- Two-digit number like ab-ba
- Three-digit number like abc-cba
- m-n if m+n=100,1000,10000...
- Two fractions like 1/a-1/b
- Two fractions like c/a-c/b
- Two fractions like (a-1)/a-(b-1)/b
- Divide any number by 5
- Divide any number by 25
- Divide any number by 125
- Divide any 3-figure number by 9

"This app rocks!! Great for Math Team practice!" -by Bubba Smith
"Great app, make me feel less stupid" -by Howie_Serious
"Its a useful app for anyone who wants to know the numbers deeper" -by sjzbim
"It's a good app for both kids and sometimes even adults" -by Willwang

Love mencal or have a question? We would love to hear your feedback! Contact us anytime at instantcj@gmail.com

What's New in Version 3.5

#fix lesson - multiply differing by 1
#minor changes

Screenshots

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4

Customer Reviews

Neat tricks

I suggest starring the ones you're most likely to need. The app taught me there are a lot more shortcuts to math than I expected.

Best math app ever

Helps you understand math in a new way

Greatest app

I like it very much. It is helpful

Mencal:Fantastic Mental Math Tricks
View in iTunes
This app is designed for both iPhone and iPad
  • $0.99
  • Category: Education
  • Updated:
  • Version: 3.5
  • Size: 5.1 MB
  • Languages: English, Simplified Chinese, Traditional Chinese
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

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