(Check) Sub
January 19, 2012 | 
Author Here’s an example of a SPEED MATH shortcut for CHECKING SUBTRACTION: (Check) Sub from the CHECKING ANSWERS category.
Make sure to check out SEED NUMBER CONCEPT to understand how Seed numbers are calculated.
When can I use this method?
For checking any Subtraction.
This method can also be used to check problems with a combination of additions and subtractions also.
Posted in (Check) Sub, Checking Answers, LazyMaths, Speed Math | 
Tags: Checking Answers, Math Tricks, Mental Math, Speed Math | 
No Comments »
Here’s an example of a SPEED MATH shortcut for CHECKING SUBTRACTION: (Check) Sub from the CHECKING ANSWERS category.
Make sure to check out SEED NUMBER CONCEPT to understand how Seed numbers are calculated.
When can I use this method?
For checking any Subtraction.
This method can also be used to check problems with a combination of additions and subtractions also.
Posted in (Check) Sub, Checking Answers, Speed Math | Tags: Checking Answers, Math Tricks, Mental Math, Speed Math | No Comments »
Here’s an example of a SPEED MATH shortcut for CHECKING SUBTRACTION: (Check) Sub from the CHECKING ANSWERS category.
Make sure to check out SEED NUMBER CONCEPT to understand how Seed numbers are calculated.
When can I use this method?
For checking any Subtraction.
This method can also be used to check problems with a combination of additions and subtractions also.
Posted in (Check) Sub, Checking Answers, Speed Math | Tags: Checking Answers, Math Tricks, Mental Math, Speed Math | No Comments »
Here’s an example of a SPEED MATH shortcut for CHECKING SUBTRACTION: (Check) Sub from the CHECKING ANSWERS category.
Make sure to check out SEED NUMBER CONCEPT to understand how Seed numbers are calculated.
When can I use this method?
For checking any Subtraction.
This method can also be used to check problems with a combination of additions and subtractions also.
Posted in (Check) Sub, Checking Answers, Speed Math | Tags: Checking Answers, Math Tricks, Mental Math, Speed Math | No Comments »
Here’s an example of a SPEED MATH shortcut for CHECKING SUBTRACTION: (Check) Sub from the CHECKING ANSWERS category.
Make sure to check out SEED NUMBER CONCEPT to understand how Seed numbers are calculated.
When can I use this method?
For checking any Subtraction.
This method can also be used to check problems with a combination of additions and subtractions also.
Posted in (Check) Sub, Checking Answers, Speed Math | Tags: Checking Answers, Math Tricks, Mental Math, Speed Math | 1 Comment »
The concept of SEED NUMBERS has to be learned before you learn how to CHECK YOUR ANSWERS without redoing the problem.
When can I use this method?
This is a concept used for Checking Addition, Subtraction, Multiplication & Division
Posted in (Check) Add, (Check) Div, (Check) Mul, (Check) Sub, Checking Answers, Speed Math | Tags: Checking Answers, Math Tricks, Mental Math, Speed Math | 2 Comments »