math puzzles with answers

All Math Formula, Math Quiz, All Math Tricks. Now learn math formula easily.

All Math Formula, Math Quiz, All Math Tricks is the best android application to learn math formula. Algebra is the most important topic of mathematics, So we have include the Algebra as a main topic in this app . If you have not internet connection but even you can use this app without internet because its offline.

-It has all mathematics formula for class 6th - 12th. This application is very useful to math solvers. Now math solvers will never forget any mathematical formulas.

-This app is also very useful for all students who wants to learn mathematics formula. Our app is made for every math lover. It has 1300+ mathematics formula in one app.

-This app has MCQ quiz for test yourself how much have you knowledge about math formulas. It has quiz game for learning the math formulas.

-It has training option to speed up your calculation speed (e.g. addition, subtraction, multiplication etc.)

-It has sample paper and previous question paper for mathematics you can simply download and read sample or question papers. It will also help you in exam time.

-It has unit conversation option which is very helpful to you to convert units. Unit converter has all common units that can be used.

-it has riddle game option to increase your thinking power. 

-This app does not collect any personal data.

ANSWER-:

ANSWER IS 18

EXPLANATION-

EQUATION 1 => ( 9 - 5 ) + ( 9 + 5 ) = ( 4 + 14 ) = ( 4 + 5 ) = 9

 

EQUATION 2 => ( 7 - 4 ) + ( 7 + 5 ) = ( 3 + 11 ) = ( 3 + 2 ) = 5

 

EQUATION 3 => ( 12 - 6 ) + ( 12 + 6 ) = ( 6 + 18 ) = ( 6 + 9 ) = 15

 

EQUATION 4 => ( 18 - 11 ) + ( 18 + 11 ) = ( 7 + 29 ) = ( 7 + 11 ) = 18  

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