Match the equation on the umbrella with the correct number on the rain child. I have included equations through the sum of 20. The students will enjoy working with the equations based on a weather theme. This is easily differentiated just by eliminating the equations that might be to challenging for your students. Or just use the color coding to help with equations that are more challenging. I love using themes with my students as it seems to hold their attention better. And learning should be FUN!