Making a ten (subtraction)

Makeing tens       
I learned how to make 10s.  First we need to make a tidy number.   A tidy number is a number that ends with with 0.  If it was 53-14 we would take away the 4 then 11.  And it makes 39.  It was so easy because all we need to do is make a tidy number or just take away.