Presents rap songs for learning addition and subtraction facts through eighteen and explains what addition and subtraction are all about.

Rap a while (adding 0 or 1) -- Sum fun (sums to 5) -- Get bigger (sums to 10) -- Great big blender (practice) -- Take it away (subtract 0 or 1) -- Rap subtracting (from numbers up to 5) -- Lighten up (from numbers up to 10) -- Subtraction action (practice) -- Plus minus rap (addition & subtraction -- Push it on up (sums to 18) -- Lean mean addin' machine (addition practice) -- Rap star (more addition practice) -- What's the difference (from numbers up to 18) -- Rerun rap (subtraction practice) -- Minus drain (more practice subtracting) -- All together now (addition & subtraction).