Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal
4 courses
88 practices
6 hours
This path introduces the rules and properties of exponents and radicals, building number sense for very large and very small quantities. You'll work with integer exponents, explore square and cube roots, connect radicals to fractional exponents, and compute with scientific notation.
You'll discover what exponents really mean — from repeated multiplication through zero and negative exponents — so every power you see makes intuitive sense rather than feeling like a memorized rule.
You'll learn the core rules for simplifying expressions with exponents — product, quotient, and power of a power — by seeing why each shortcut works, then apply your skills fluently to powers of ten.
You'll build intuition for square roots and cube roots as the inverses of squaring and cubing, estimate roots of non-perfect values, and connect radical notation to fractional exponents.
You'll master scientific notation as a practical tool for reading, writing, comparing, and computing with very large and very small numbers, grounded in real-world quantities like populations and microscopic measurements.
I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.
Faith Yim
Software Engineer
+14
It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.
Alex Bush
Full Stack Engineer
+9
I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.
Abbey Helterbran
Tech consultant
+8
I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.
Jonathan Miller
Senior Machine Learning Engineer
+12
I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!
