Grade+One+-+Empty+Number-Line+Subtraction

PD Workshop
 * [[image:grade_1_-_nls2.jpg width="428" height="368"]] || [[image:grade_1_-_nls3.jpg width="429" height="369"]] || [[image:grade_1_-_nls4.jpg width="429" height="369"]] ||
 * [[image:grade_1_-_nls2.jpg width="428" height="368"]] || [[image:grade_1_-_nls5.jpg width="429" height="369"]] || [[image:grade_1_-_nls6a.jpg width="429" height="369"]] ||