Students should subtract two numbers and circle the four leaf clover with the correct answer.This products on our site is copyright Mr. MILO Resource©. All rights reserved. The purchasers of our products have the right to make copies for personal or classroom use only. Duplication, or copying, for other coworkers/ teachers, other classrooms, other schools, or commercial use of any kind is prohibited without written consent from the authors of Mr. MILO Resource©.