document.write( "Question 185219: If a and b are any two real numbers, explain how you calculate the difference a- b. Be sure to use the following in the explanation.\r
\n" ); document.write( "\n" ); document.write( "A) A description of the relationship between addition and subtraction.
\n" ); document.write( "B) How you can use a numberline to help with the calculation.
\n" ); document.write( "C) How you can determine the sign of the result.
\n" ); document.write( "

Algebra.Com's Answer #804003 by CubeyThePenguin(3113)\"\" \"About 
You can put this solution on YOUR website!
1. Plot a and b on the number line.
\n" ); document.write( "2. From a, draw b ticks backwards. The resulting value is a - b.
\n" ); document.write( "3. To check the sign, see if 0 is to the right or to the left of the result. \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "0 is to the right ---> a - b is negative
\n" ); document.write( "0 is to the left ---> a - b is positive.
\n" ); document.write( "
\n" );