Multiplying Powers of Ten

Students develop rules for positive exponents and use repeated reasoning to discover the exponent rule 10ⁿ • 10^m = 10^n+m (MP8). Students reason abstractly and quantitatively when applying exponent rules, pausing to consider the meaning of quantities, not just how to compute them (MP2).

Grade 8, Episode 16: Unit 7, Lesson 2 | Illustrative Math