Spin up some math fun with the free Spin a Web of Numbers game! Follow step-by-step instructions to create the game pieces before putting your addition and subtraction facts up to 20 to the test. Students will choose a spider card and read the math problem, then place their spider on the spiderweb with the correct answer. Play continues until each spider has been matched to the correct web. Student can check their work by turning over each spider to reveal the correct answer.