This is an extension to existing Doubling and Halving App. This app has been improved a lot and added 15 lessons practices tests. Tests in this app are fifteen 2 digit doubling or halving in 60 seconds(4 seconds for each problem), twenty 3 digit doubling or halving in 100 seconds, thirty 4 digit doubling or halving in 180 seconds.

Mental Math Challenge Doubling And Halving alternatives

Math Tricks For Kids

Mathematricks

Do you want to do quick calculations for large numbers ? Are you getting less grades in maths ? Write 2.

  • size 19.0 MB

Mental Math Speed Challenge

Race against the clock and try to set the fastest time in this fun and exciting new game. Mental Math Speed Challenge is designed to improve your math skills no matter what your current abilities are. Features:- Addition, Subtraction, Multiplication, Division, and Challenge game modes.- Easy, Medium, and Hard difficulty settings.- Practice mode so you can work on specific numbers.- Help button for wrong answers in practice mode.- Game Center leaderboards and achievements.- Records section for top 10 fastest times.- Statistics section to keep track of games played, average time, and accuracy.- Customizable settings and preferences.

  • rating 4.0
  • size 20.8 MB

Math Challenge Lite (Multi-User)

Math Challenge Lite (Multi-User) is a great app for kindergarten to 2nd grade children. The purpose of this app is to practice their addition and subtraction skills. We are willing to assist you.

  • size 49.2 MB

Tricksy - Smart Math Tricks

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. 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 + 2X + 2X + 2X + + 2X ( 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: X (X2) ( 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: 1111 9999 The repeated #1s 12: 1111 12 ( Locked ) The repeated #1s 13: 1111 13 ( Locked ) The repeated #1s 14: 1111 14 ( Locked ) The repeated #1s 15: 1111 15 ( Locked ) The repeated #1s 16: 1111 16 ( Locked ) The repeated #1s 17: 1111 17 ( Locked ) The repeated #1s 18: 1111 18 ( Locked ) The repeated #1s 19: 1111 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% (33%) of a number 5% of a number ( Locked ) 2.5% (2%) 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: (1111) ; number of digits < 10 Number made up of 3s: (3333) ( Locked ) Number made up of 6s: (6666) ; 1 < number of digits ( Locked ) Number made up of 9s: (9999) ; 1 < number of digits ( Locked ) Two digit number beginning with 5: (5a) ( Locked ) Two digit number ending with 5: (a5) ( Locked ) Challenge your brain to think efficiently while having fun with our smart math tricks Follow Us on Facebook: TricksyApp& Twitter: @hassantaleb90

  • size 18.2 MB