Mencal - Mental Math Tricks Hack 4.2 + Redeem Codes
Calculate Without Calculator
Developer: Jun Cao
Category: Education
Price: $1.99 (Download for free)
Version: 4.2
ID: com.caojun.Mencal
Screenshots
Description
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 [email protected]
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 [email protected]
Version history
4.2
2022-04-28
1. Use iCloud to store learning data
2. Fix the issue that the learning data is not saved
3. Fix the issue that game center is not logged in
4. Fix horizontal screen display bug
2. Fix the issue that the learning data is not saved
3. Fix the issue that game center is not logged in
4. Fix horizontal screen display bug
4.1
2022-04-05
• Fixed some minor bugs
Love Mencal or have a question? We would love to hear your feedback! Contact us anytime at [email protected]
Love Mencal or have a question? We would love to hear your feedback! Contact us anytime at [email protected]
4.0
2022-04-03
1. Brand new user interface
2. Support dark mode
3. Adapt to iPad, support horizontal orientation and multiple windows
4. Support full screen learning on iPad
5. Modified the group of courses
6. Show courses’ learning progress
7. Change learning progress manually
8. More practice groups added
9. Fixed some other minor bugs
Love Mencal or have a question? We would love to hear your feedback! Contact us anytime at [email protected]
2. Support dark mode
3. Adapt to iPad, support horizontal orientation and multiple windows
4. Support full screen learning on iPad
5. Modified the group of courses
6. Show courses’ learning progress
7. Change learning progress manually
8. More practice groups added
9. Fixed some other minor bugs
Love Mencal or have a question? We would love to hear your feedback! Contact us anytime at [email protected]
3.70
2018-01-01
This app has been updated by Apple to display the Apple Watch app icon.
● Ready for iPhone X
● Additional bug fixes and stability improvements
● Remove math game In-App purchase
● Ready for iPhone X
● Additional bug fixes and stability improvements
● Remove math game In-App purchase
3.62
2017-05-11
#bugfixes
3.61
2017-01-08
# fix a crash bug
3.6
2017-01-06
#bugfixes
3.5
2015-06-07
#fix lesson - multiply differing by 1
#minor changes
#minor changes
3.4
2015-05-22
#bugfixes
3.3
2015-05-14
#improve stability for iPhone 6
#bugfixes
#bugfixes
3.2
2015-03-13
#bugfixes and minor changes
3.1
2015-01-11
-bugfixes
3.0
2014-12-05
• iPhone 6 ,iPhone 6 Plus and iPad support (Universal)
• 15 new math tricks
• New Features:
- New user interface
- Share these useful math tricks with your friends :
①:Share as an image;
②:Sharing services:mail,facebook,twitter;
- Slide any math trick list entry to toggle un/starred.
- New practice mode.
- Four beautiful themes.
- Four math games' training make you feel smarter.
......
• 15 New Math Tricks:
- 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
- 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
- Multiply any number by 5
- Multiply any number by 9
- Multiply any number by 99
• 15 new math tricks
• New Features:
- New user interface
- Share these useful math tricks with your friends :
①:Share as an image;
②:Sharing services:mail,facebook,twitter;
- Slide any math trick list entry to toggle un/starred.
- New practice mode.
- Four beautiful themes.
- Four math games' training make you feel smarter.
......
• 15 New Math Tricks:
- 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
- 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
- Multiply any number by 5
- Multiply any number by 9
- Multiply any number by 99
2.3
2014-06-03
Minor fixes
2.2
2014-03-15
#Bugfixes and improvements
#Other minor changes.
#Other minor changes.
2.1
2013-10-30
#fix bug (ios 7)
2.0
2013-10-04
#Ready for ios7
#Fix many other problems
#Fix many other problems
1.0
2013-04-26
Cheat Codes for In-App Purchases
| Item | Price | iPhone/iPad | Android |
|---|---|---|---|
| Unlock all math games (Unlock all math games) |
Free |
FG947497155✱✱✱✱✱ | 80C155F✱✱✱✱✱ |
| Unlock Random Mode (Unlock Random Mode) |
Free |
FG355864617✱✱✱✱✱ | 4BDDA7A✱✱✱✱✱ |
| Unlock Fractions Mode (Unlock Fractions Mode) |
Free |
FG923935219✱✱✱✱✱ | 34FC58F✱✱✱✱✱ |
| Unlock Operators Mode (Unlock Operators Mode) |
Free |
FG214911839✱✱✱✱✱ | C7A6402✱✱✱✱✱ |
| Unlock Numbers Mode (Unlock Numbers Mode) |
Free |
FG339851011✱✱✱✱✱ | 35E91C7✱✱✱✱✱ |
Ways to hack Mencal - Mental Math Tricks
- Redeem codes (Get the Redeem codes)
Download hacked APK
Download Mencal - Mental Math Tricks MOD APK
Request a Hack
Ratings
4.6 out of 5
11 Ratings
Reviews
Donn1hew,
Great App
You just have to devote time do the application and do examples over and over and over again. With time your master these exercises. Your mastery will save you a lot of time.
Aleni Innet,
Math always helps
To keep your brain in 4/3 πr ³
iKruXified,
Interactive game
The keypad can include arrow keys to edit.
Carrot2006,
5 stars
Love this app.
はなちやん@.@,
Magical experience !
I've definitely been enlightened after merely a few minutes usage of this app. Right now I've been captured by the unfathomably mesmerizing beauty of this app. Try it you won't regret.
agaivsvfa,
Good
Good
Ecp84,
Could be great
This is the best-looking app of this sort that I have seen (other than the choice of handwritten/chalkboard font for the numbers), but something tells me the appearance took precedence over the importance of utility. The instructions for methods are sometimes unclear, and not only because it looks as though the person who wrote it was not a native English-speaker. Sometimes crucial words are omitted. Sometimes it's just unclear what's being said.
Additionally, it is my opinion that the app could use some expansion regarding how one is able to test oneself. Let the user test him- or herself incrementally with each step as they begin to understand it, or allow the user to include or omit the methods used in the testing portion. Otherwise, it requires the user to master and understand each kind of method before feeling they can challenge themselves effectively. Otherwise, this is a great app, and a beautiful one to boot. I'd love to use this more often if I could seem to have it work more in my favor as I learn and test myself with each method. It certainly had great potential, and I look forward to seeing how/if it changes in the future.
Additionally, it is my opinion that the app could use some expansion regarding how one is able to test oneself. Let the user test him- or herself incrementally with each step as they begin to understand it, or allow the user to include or omit the methods used in the testing portion. Otherwise, it requires the user to master and understand each kind of method before feeling they can challenge themselves effectively. Otherwise, this is a great app, and a beautiful one to boot. I'd love to use this more often if I could seem to have it work more in my favor as I learn and test myself with each method. It certainly had great potential, and I look forward to seeing how/if it changes in the future.
Happyspringday,
I really WANT to love this app so much
Like at least one other reviewer, I don't think the app creator has a great grasp on English, which is understandable. English is a difficult language. That said, I think the app creator should vet the app with an English speaking person.
Secondly, but more importantly, I tried one of the tricks 267x11 but could not reproduce the correct answer using the "trick". I end up with 3,117 using the trick. (Correct answer is 2,937). Maybe it's the language issue or maybe the trick is not correct. Either way, I love the CONCEPT just struggling with the execution.
Secondly, but more importantly, I tried one of the tricks 267x11 but could not reproduce the correct answer using the "trick". I end up with 3,117 using the trick. (Correct answer is 2,937). Maybe it's the language issue or maybe the trick is not correct. Either way, I love the CONCEPT just struggling with the execution.
Sakeuon,
Very useful for simple math
The app has a sound design and beautiful aesthetics. The method learning portion could use some work - like a counter somewhere with the answers correct/answers wrong, and the icons for switching towards practice could be a bit more obvious, but that doesn't really take away from it.
The practice mode that includes all methods could indeed have an option to remove certain methods that are more complex - such as squaring numbers in the 400s - so the user could practice several methods that he's learned at once.
As for the instructions, I think they are pretty clear and if read with enough attention, are simple to understand.
Overall it's a pretty amazing app and it has lots of potential for math-loving people. I enjoy it quite a lot.
The practice mode that includes all methods could indeed have an option to remove certain methods that are more complex - such as squaring numbers in the 400s - so the user could practice several methods that he's learned at once.
As for the instructions, I think they are pretty clear and if read with enough attention, are simple to understand.
Overall it's a pretty amazing app and it has lots of potential for math-loving people. I enjoy it quite a lot.
Finees,
it's ok
there are some tricks that can be helpful but there are also example that make it to complicated and hard. for example 45+54=99
the app says to add 4+5=9 then 9*11=99 why the hell would I do that when I can clearly see lining up the numbers in my mind they will both be 9's. it get even crazier with 3 digit numbers, taking a simple 3'digit addition number and mixing multiplication and more addition, it just seams stupid to make it harder.
the app says to add 4+5=9 then 9*11=99 why the hell would I do that when I can clearly see lining up the numbers in my mind they will both be 9's. it get even crazier with 3 digit numbers, taking a simple 3'digit addition number and mixing multiplication and more addition, it just seams stupid to make it harder.
