\set_margins 12
%f011
%uAddition and Subtraction%u%n%n

%f010
0 Property

\set_margins 22
%f014
Use this strategy when adding or subtracting 0.%n%n

\set_margins 32 32
%f015
When adding 0 to a number or subtracting 0 from a number the
 answer is the number.%n

%n
%t030 5 + 0 = 5
%n
%t030 3 - 0 = 3

%n%n