I Can Figure Figures

Danny: One plus one minus one is one!
Plug: Eleven plus none minus none is none!
Toots: One plus none plus two is three!
Bash Street Kids: I can figure figures is as easy as can be!
Smiffy: Two times seven minus three is eleven!
Erbert: Two times eleven minus fifteen is seven!
Fatty: Fifteen times thirteen is one-hundred-ninety-five!
Bash Street Kids: I can figure figures there’s none as anyone alive!
Sidney: Twenty-thousand turtles times ten tin tops!
Wilfred: Plus fifteen billion bottles minus seven lollipops!
Spotty: Divided two bananas that makes eleventeen!
Bash Street Kids: French fries, noodles and a green string bean!