Mencal
INSTANT.CJ - $2.47
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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 instantcj@gmail.com
  • iPhone1
  • iPhone2
  • iPhone3
  • iPhone4
  • iPad1
  • iPad2
  • iPad3
  • iPad4
Informations
Released: 2013-04-26
Updated: 2020-05-28
Current version: 3.70
Size: 9.29 Mo
Rated: 4+
Seller: Jun Cao
Category: Utilities, Reference, Games, Education, Educational, Puzzle
Copyright: © INSTANT.CJ
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Available Store (155)
USAFRADEUGBRAUTBELFINGRCIRLITALUXNLDPRTESPCANSWENORDNKCHEAUSNZLHKGSGPCHNKORINDMEXRUSTWNVNMZAFMYSPHLTHAIDNPAKPOLSAUTURAREHUNCHLNPLPANLKAROUCZEISRUKRKWTHRVCRISVKLBNQATSVNCOLVENBRAGTMARGSLVPERDOMECUHNDJAMNICPRYURYMACEGYKAZESTLVALTUMLTMDAARMBWABGRJORKENMKDMDGMLIMUSNERSENTUNUGAAIABHSATGBRBBMUVGBCYMDMAGRDMSRKNALCAVCTTTOTCAGUYSURBLZBOLCYPISLBHRBRNNGAOMNDZAAGOBLRUZBAZEYEMTZAGHAALBBENBTNBFAKHMCPVTCDCOGFJIGMBGNBKGZLAOLBRMWIMRTFSMMNGMOZNAMPLWPNGSTPSYCSLESLBSWZTJKTKMZWE

Supported language (3)
USAGBR

Version change
2015-06-063.5
2015-05-223.4
2015-05-133.3
2015-03-123.2
2015-01-103.1
2014-06-022.3
2014-03-142.2
2013-10-292.1
indexation2.0

Price change
2020-05-25$2.47
2020-05-23$1.23
2019-11-26$2.47
2019-09-19$1.23
2019-05-11$2.47
2019-03-11$1.23
2019-03-11$2.47
2019-03-11$1.23
2019-03-11$2.47
2019-03-11$1.23
2018-10-06$2.47
2018-09-19$1.23
2018-09-19$2.47
2018-09-19$1.23
2018-09-19$2.47
2018-09-19$1.23
2018-05-13$2.47
2018-05-13$1.23
2018-05-13$2.47
2018-05-10$1.23
2018-04-14$2.47
2018-04-09$1.23
2018-04-09$2.47
2018-04-09$1.23
2018-02-11$2.47
2018-02-08$1.23
2018-01-31$2.47
2018-01-25$1.23
2018-01-20$2.47
2018-01-20$1.23
2018-01-20$2.47
2018-01-16$1.23
2018-01-16$2.47
2018-01-16$1.23
2018-01-09$2.47
2018-01-05$1.23
2018-01-02$3.71
2017-12-28$2.47
2017-12-25$1.23
2017-12-21$2.47
2017-12-19$1.23
2017-12-19$2.47
2017-12-18$1.23
2017-12-06$2.47
2017-12-03$1.23
2017-11-26$2.47
2017-11-23$1.23
2017-11-23$2.47
2017-11-23$1.23
2017-11-12$2.47
2017-11-03$1.23
2017-11-03$2.47
2017-11-03$1.23
2017-10-19$2.47
2017-10-19$1.23
2017-10-19$2.47
2017-10-18$1.23
2017-10-13$2.47
2017-10-13$3.71
2017-10-13$2.47
2017-10-09$3.71
2017-09-03$2.47
2017-08-17$1.23
2017-06-22$2.47
2017-06-15$1.23
2017-06-04$2.47
2017-06-04$1.23
2017-06-04$2.47
2017-05-20$1.23
2017-05-10$2.47
2017-05-04$1.23
2017-05-02$1.23
2017-04-24$1.23
2017-04-18$2.47
2017-04-13$1.23
2017-03-25$2.47
2017-03-18$1.23
2017-03-17$2.47
2017-03-17$1.23
2017-03-05$2.47
2017-03-01$1.23
2017-01-24$2.47
2017-01-18$1.23
2017-01-18$2.47
2017-01-18$1.23
2017-01-16$2.47
2017-01-11$1.23
2016-12-26$2.47
2016-12-23$1.23
2016-12-16$2.47
2016-12-13$1.23
2016-11-19$2.47
2016-11-17$1.23
2016-09-25$2.47
2016-09-17$1.23
2016-09-13$2.47
2016-09-10$1.23
2016-08-26$2.47
2016-08-17$1.23
2016-07-18$2.47
2016-07-15$1.23
2016-06-10$2.47
2016-06-07$1.23
2016-05-03$2.47
2016-05-03$1.23
2016-05-03$2.47
2016-05-03$1.23
2016-05-03$2.47
2016-04-30$1.23
2015-11-27$2.47
2015-11-26$1.23
2015-10-05$2.47
2015-09-28$1.23
2015-08-21$2.47
2015-08-16$1.23
2015-07-13$2.47
2015-07-09$1.23
2015-06-14$2.47
2015-06-11$0.00
2015-05-19$2.47
2015-05-07$1.23
2015-03-14$2.47
2015-02-10$1.23
2015-01-27$2.47
2014-10-24$1.23
2014-10-18$2.47
2014-09-26$1.23
2014-09-21$2.47
2014-09-04$1.23
2014-08-14$2.47
2014-07-22$1.23
2014-07-14$2.47
2014-07-14$1.23
2014-07-14$2.47
2014-07-12$1.23
2014-06-28$2.47
2014-06-28$0.00
2014-06-28$2.47
2014-06-25$0.00
2014-06-18$2.47
2014-06-04$1.23
2014-05-28$2.47
2014-05-25$1.23
2014-05-03$2.47
2014-05-01$1.23
2014-04-17$2.47
2014-04-12$1.23
2014-03-26$2.47
2014-03-16$1.23
2014-02-23$2.47
2014-02-22$1.23
2014-02-08$2.47
2014-02-03$3.71
2014-01-30$1.23
2014-01-16$2.47
2014-01-11$1.23
2013-11-01$2.47
2013-10-30$0.00
2013-10-13$2.47
2013-10-12$1.23
2013-08-08$2.47
2013-08-05$1.23
2013-07-22$2.47
2013-07-19$1.23
2013-07-03$2.47
2013-06-29$1.23
2013-06-03$2.47
2013-06-01$1.23
2013-05-01$2.47
indexation$0.00
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