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

\set_margins 10
%f010
%uMake 10, Add the Extra%u%n%n

\set_margins 20
%f014
Use this strategy when sums are 10 or greater.%n%n

\set_margins 20
%f015
Children add numbers with sums of 10 easily. To make
 problems with sums of more than 10 easier, have children first
 make the sum of 10, and then add the rest.%n%n

%t050  7 + 4 = ? %n
%t050  7 + 3 = 10%n
%t050 10 + 1 = 11%n%n

\image addmk101.pcx

%n
%t050 4  + 9 =  ?%n
%t050 9  + 1 = 10%n
%t050 10 + 3 = 13%n%n

\image addmk102.pcx

%n%n