Grade+Four+-+Nice+Numbers+Subtraction

PD Workshop
 * [[image:grade_4_-_nns1.jpg width="321" height="275"]] || [[image:grade_4_-_nns2.jpg width="321" height="275"]] || [[image:grade_4_-_nns3.jpg width="321" height="275"]] ||
 * [[image:grade_4_-_nns4.jpg width="321" height="275"]] || [[image:grade_4_-_nns5.jpg width="320" height="274"]] || [[image:grade_4_-_nns6.jpg width="318" height="272"]] ||
 * [[image:grade_4_-_nns7.jpg width="321" height="275"]] || [[image:grade_4_-_nns8.jpg width="320" height="274"]] || [[image:grade_4_-_nns9.jpg width="320" height="274"]] ||