Join Dexter through five fossil chapters on negative & positive numbers — the meaning of “−”, opposites, absolute value, and why signs flip (or don't!) when you add, subtract, and multiply. 100 practice questions, instant explanations, and a printable ink-saving worksheet.
Before you scroll to your results, jot down the rules that clicked for you today — like a paleontologist's field journal. What did you learn about signs flipping (or not)?