Mental math worksheet for adding and subtracting 10 or 100 from numbers, featuring star-shaped answer spaces and a guitar-playing girl illustration.
A black and white math worksheet titled "Adding and Subtracting" for mental math practice, featuring equations like 178 + 10 and 920 - 10, with star-shaped answer spaces. The worksheet includes a cartoon girl playing guitar and is labeled "Mental Math Addition & Subtraction" with a "Lucky Little Learners 2020" copyright.