The original version of this story appeared in Quanta Magazine. The simplest ideas in mathematics can also be the most perplexing. Take addition. It’s a straightforward operation: One of the first ...

A new proof illuminates the hidden patterns that emerge when addition becomes impossible. The simplest ideas in mathematics can also be the most perplexing. Take addition. It’s a straightforward ...

CBSE 2024-25 Competency Based Questions With Answers: To improve conceptual understanding in students, the Central Board of Secondary Education (CBSE) has designed competency‐based assessments for ...