Make math colorful. Solve equations straight from the end of the rainbow with these Rainbow calculators. Each set of 10 Rainbow calculators offers five vibrant colors. Choose from red, green, blue, yellow, or purple: there's one for every day of the school week. Add some color to your elementary math classes, or brighten up the evening's homework. Although the colors may be whimsical, the Rainbow calculators do serious work: use these four-function calculators to check addition, subtraction, multiplication, and division equations on the eight-digit display, or discover more advanced calculations such as square roots, percentages, and more. Simple to use for beginners and powerful enough for older students, the Rainbow calculators grow along with your skills. Each Rainbow calculator operates with both solar and battery power, and also includes features such as auto shutoff, three-key memory, and more. Perfect for teacher resources and school stores. Easy-to-use solution for all of your basic math needs. Use these calculators to check addition, subtraction, multiplication, and division equations, or discover more advanced calculations such as square roots, percentages, and more. Three-key memory keeps often used figures accessible for faster calculations. Operates with both solar and battery power. 10 calculators per pack. Made of plastic. Offers five vibrant colors (red, green, blue, orange, and purple). Pocket calculators offer eight-digit LCDs for convenient viewing. Auto shutoff feature prevents unwanted or unintentional usage of the battery. Safety Data Sheet