This is a self checking google spreadsheets activity!Students will complete 15 problems with two parts each, when the student types the answer correctly in the response box, it will light up green. If the response is incorrect, nothing will change! This will allow struggling students to correctly identify areas of struggle and where they need help! On track or advanced students will receive instant gratification that they are completing each problem correctly!Topics covered:Sheet 1: 45-45-90 Tri