In this 2-day lesson plan focused on exponents, middle schoolers will cross the curriculum by engaging in science, history and language arts activities. Exponential growth will be explored using grains of rice on a chess board....

Twenty-eight subtraction problems are presented using single- or double-digits. Because of a fuzzy bat at the top of the page, this is a Halloween-themed worksheet. Use it as a homework assignment or assessment of subtraction skills.