help you decide what type of subtraction operation to use










Is the difference under 10?
 NO

is the difference between 10 and 50
 NO

Are all digits in the larger number higher than the lower number?
 NO

Is there a zero in your number?
 NO

go to the next box!

YES


YES


YES


YES



use fingers to count up from the smallest number


add jump to the nearest 10, add multiples of 10, then keep jumping in 1's


easy column subtraction


Try using empty number line of expanded decomposition (eg 502362)


Are there decimals?








YES

NO


 
 

Remember it's not just the columns that are the same, keep your decimal point in the same place!


Use expanded or column method!











 
 
 
 










 
 
 
 










 
 
 
 










 
 
 
 








