Solve using shortcut methods in Addition with Examples of number 9-Mental Math

How to solve 685+99 fast in short cut method

Addition is the first basic OPERATION that we have learned as a beginner but here is short cuts methods involved in the Addition.Our Divisibility rules for 1 to 20 is big hit, now it is turn to learn quick addition method. You should teach your elementary child to do quick addition with this simple step by step method. This addition and subtraction will help him/her  in mental math tricks too and it will be easy to solve any maths problems regarding addition and subtraction.

Examples of adding numbers which ends with 9 and 8:

  1. 685+99=            

  2. 829+999=           

  3. 345+9999=          

  4. 792+888=           

Solution for shortcut addition method:

How to solve 685+99, 828+999 fast in short cut method

 

Mental math

Mental math for quick addition

How to solve 685+99, 828+999 fast in short cut method

Notes to remember: Whenever you want to add 99, you need to round up 99 to 100 and take away what you are adding (subtract).

Credit: I give all credit to my mom who is my best teacher.