This FREE download is a pdf file of the 16 Stella problems and solutions for the fourth grade Stella curriculum. Please view the sample problems and then contact me to let me know which problems you would like to purchase. I will then make those problems available for download in a word document so that the problems and/or solutions can be easily edited by you as you see fit. Each 4-tiered problem along with its solution letter can be purchased for $5. Thanks for your interest and have a great day!