Tricksy
Smart Math Tricks
Free
1.3for iPhone, iPad and more
Age Rating
Tricksy Screenshots
About Tricksy
Tricksy is a universal app that allows you to solve many math operations in a simple way, by applying untraditional techniques.
This app includes more than 60 lessons classified into these domains: Addition, subtraction, multiplication, division, percentage and power.
These lessons are presented in levels, arranged from the easiest lesson to the most difficult one. Each of these lessons is explained in a simple and clear way; using steps supported by examples.
Besides the lessons, tricksy includes some useful tools for calculation, in which students can benefit, and may apply them during their school domain.
~The included tricks are:
▸ Addition:
• Adding two-digit numbers like ab + ba
• Adding 2 fractions like 1/a + 1/b
• Adding a sequence of odd numbers beginning by 1: 1 + 3 + 5 + … + 2n-1
• Adding a sequence of even numbers beginning by 2: 2 + 4 + 6 + … + 2n
• Adding a sequence from 1 to any number and back to 1 again: 1 + 2 + 3 +…+ X +…+ 3 + 2 +1
• Adding a sequence of doubles: X + 2⋅X + 2²⋅X + 2³⋅X + ... + 2ⁿ⋅X ( Locked )
• ...
▸ Subtraction:
• Subtracting two-digit numbers like ab − ba
• Subtracting 2 fractions like 1/a − 1/b
• Subtracting 2 fractions like c/a − c/b
• Subtracting 2 fractions like (a − 1)/a − (b − 1)/b
• Subtracting three-digit numbers like abc − cba ( Locked )
• Subtracting the squares of two numbers differing by 2: X² − (X−2)² ( Locked )
• ...
▸ Multiplication:
• Any number × 5
• Two digit number × 11: ab × 11; a + b < 10
• Two digit number × 11: ab × 11; a + b ≥ 10
• Any number × 9
• The repeated #1s × the repeated #9s having the same # of digits: 111..1 × 999..9
• The repeated #1s × 12: 111..1 × 12 ( Locked )
• The repeated #1s × 13: 111..1 × 13 ( Locked )
• The repeated #1s × 14: 111..1 × 14 ( Locked )
• The repeated #1s × 15: 111..1 × 15 ( Locked )
• The repeated #1s × 16: 111..1 × 16 ( Locked )
• The repeated #1s × 17: 111..1 × 17 ( Locked )
• The repeated #1s × 18: 111..1 × 18 ( Locked )
• The repeated #1s × 19: 111..1 × 19 ( Locked )
• Consecutive decade ending in 5: a5 × b5; b = a + 1 ( Locked )
• Two 2-digit numbers with same 10s digit: ab × ac; b + c = 10 ( Locked )
• Two 2-digit numbers with same 10s digit: ab × ac; b + c ≠ 10 ( Locked )
• Two 2-digit numbers with same 1s digit: ab × cb; a + c = 10 ( Locked )
• Two 2-digit numbers with same 1s digit: ab × cb; a + c ≠ 10 ( Locked )
▸ Division:
• Any number ÷ 5
• Any number ÷ 50
• Any number ÷ 25
• Any number ÷ 250
• Any number ÷ 125
• Repeating 3-digit number ÷ 37: aaa ÷ 37
• Any number ÷ 40 ( Locked )
• Any number ÷ 15 ( Locked )
• Any number ÷ 35 ( Locked )
▸ Percentage:
• 50% of a number
• 25% of a number
• 20% of a number
• 33.33...% (33⅓%) of a number
• 5% of a number ( Locked )
• 2.5% (2½%) of a number ( Locked )
• 40% of a number ( Locked )
• 60% of a number ( Locked )
• 70% of a number ( Locked )
• 75% of a number ( Locked )
• 45% of a number ( Locked )
• 15% of a number ( Locked )
• ...
▸ Power:
• Number made up of 1s: (111..1)² ; number of digits < 10
• Number made up of 3s: (333..3)² ( Locked )
• Number made up of 6s: (666..6)² ; 1 < number of digits ( Locked )
• Number made up of 9s: (999..9)² ; 1 < number of digits ( Locked )
• Two digit number beginning with 5: (5a)² ( Locked )
• Two digit number ending with 5: (a5)² ( Locked )
Challenge your brain to think efficiently while having fun with our smart math tricks !
--------------------------------------------
Follow Us on Facebook: TricksyApp
& Twitter: @hassantaleb90
This app includes more than 60 lessons classified into these domains: Addition, subtraction, multiplication, division, percentage and power.
These lessons are presented in levels, arranged from the easiest lesson to the most difficult one. Each of these lessons is explained in a simple and clear way; using steps supported by examples.
Besides the lessons, tricksy includes some useful tools for calculation, in which students can benefit, and may apply them during their school domain.
~The included tricks are:
▸ Addition:
• Adding two-digit numbers like ab + ba
• Adding 2 fractions like 1/a + 1/b
• Adding a sequence of odd numbers beginning by 1: 1 + 3 + 5 + … + 2n-1
• Adding a sequence of even numbers beginning by 2: 2 + 4 + 6 + … + 2n
• Adding a sequence from 1 to any number and back to 1 again: 1 + 2 + 3 +…+ X +…+ 3 + 2 +1
• Adding a sequence of doubles: X + 2⋅X + 2²⋅X + 2³⋅X + ... + 2ⁿ⋅X ( Locked )
• ...
▸ Subtraction:
• Subtracting two-digit numbers like ab − ba
• Subtracting 2 fractions like 1/a − 1/b
• Subtracting 2 fractions like c/a − c/b
• Subtracting 2 fractions like (a − 1)/a − (b − 1)/b
• Subtracting three-digit numbers like abc − cba ( Locked )
• Subtracting the squares of two numbers differing by 2: X² − (X−2)² ( Locked )
• ...
▸ Multiplication:
• Any number × 5
• Two digit number × 11: ab × 11; a + b < 10
• Two digit number × 11: ab × 11; a + b ≥ 10
• Any number × 9
• The repeated #1s × the repeated #9s having the same # of digits: 111..1 × 999..9
• The repeated #1s × 12: 111..1 × 12 ( Locked )
• The repeated #1s × 13: 111..1 × 13 ( Locked )
• The repeated #1s × 14: 111..1 × 14 ( Locked )
• The repeated #1s × 15: 111..1 × 15 ( Locked )
• The repeated #1s × 16: 111..1 × 16 ( Locked )
• The repeated #1s × 17: 111..1 × 17 ( Locked )
• The repeated #1s × 18: 111..1 × 18 ( Locked )
• The repeated #1s × 19: 111..1 × 19 ( Locked )
• Consecutive decade ending in 5: a5 × b5; b = a + 1 ( Locked )
• Two 2-digit numbers with same 10s digit: ab × ac; b + c = 10 ( Locked )
• Two 2-digit numbers with same 10s digit: ab × ac; b + c ≠ 10 ( Locked )
• Two 2-digit numbers with same 1s digit: ab × cb; a + c = 10 ( Locked )
• Two 2-digit numbers with same 1s digit: ab × cb; a + c ≠ 10 ( Locked )
▸ Division:
• Any number ÷ 5
• Any number ÷ 50
• Any number ÷ 25
• Any number ÷ 250
• Any number ÷ 125
• Repeating 3-digit number ÷ 37: aaa ÷ 37
• Any number ÷ 40 ( Locked )
• Any number ÷ 15 ( Locked )
• Any number ÷ 35 ( Locked )
▸ Percentage:
• 50% of a number
• 25% of a number
• 20% of a number
• 33.33...% (33⅓%) of a number
• 5% of a number ( Locked )
• 2.5% (2½%) of a number ( Locked )
• 40% of a number ( Locked )
• 60% of a number ( Locked )
• 70% of a number ( Locked )
• 75% of a number ( Locked )
• 45% of a number ( Locked )
• 15% of a number ( Locked )
• ...
▸ Power:
• Number made up of 1s: (111..1)² ; number of digits < 10
• Number made up of 3s: (333..3)² ( Locked )
• Number made up of 6s: (666..6)² ; 1 < number of digits ( Locked )
• Number made up of 9s: (999..9)² ; 1 < number of digits ( Locked )
• Two digit number beginning with 5: (5a)² ( Locked )
• Two digit number ending with 5: (a5)² ( Locked )
Challenge your brain to think efficiently while having fun with our smart math tricks !
--------------------------------------------
Follow Us on Facebook: TricksyApp
& Twitter: @hassantaleb90
Show More
What's New in the Latest Version 1.3
Last updated on Nov 12, 2018
Old Versions
• iOS 12 support
Show More
Version History
1.3
Nov 12, 2018
• iOS 12 support
1.2.2
Jul 17, 2017
• Minor improvements
1.2.1
Nov 12, 2015
• iPad Pro support
• Minor improvements
• Minor improvements
1.2
Oct 12, 2015
• iOS 9 support
• Minor improvements
• Minor improvements
1.1
Apr 7, 2015
• Minor improvements.
• Icon improvement.
• Added a new tool: metric prefixes (For pro users).
• Icon improvement.
• Added a new tool: metric prefixes (For pro users).
1.0
Feb 16, 2015
Tricksy FAQ
Click here to learn how to download Tricksy in restricted country or region.
Check the following list to see the minimum requirements of Tricksy.
iPhone
Requires iOS 8.0 or later.
iPad
Requires iPadOS 8.0 or later.
iPod touch
Requires iOS 8.0 or later.
Tricksy supports English