Give your students practice with comparing length measurements and writing equations using these 12 task cards. Students will measure both rainbows using an inch ruler and compare the measurements using subtraction. These measurement task cards are perfect for your March math centers or as a St. Patrick's Day activity! Use these task cards for scoots around the room, math centers, or partner activities.To prep these centers, simply print each page (2 cards on each page), cut, and laminate for du