randRange( 1, 10 ) randRange( 1, A )
init({ range: [ [0, 12], [-1, 1] ] }); label( [0, 0], "\\Huge{\\color{#6495ED}{" + A + "} - \\color{#28AE7B}{" + B + "} = {?}}", "right" );
A - B
drawCircles( A, "#6495ED" );
crossOutCircles( A, B, "#FFA500" );

We began with plural( A, "dot" ) and crossed out B of them, so we are left with plural( A - B, "dot" ).