Lesson 3 top notch July 8, 2019 16 32 64 128 Top notch 3 lesson 1 Top notch 3 lesson 4 Top notch 3 lesson 2 Top notch lesson 3 Top notch 3 lesson 3 Top notch 3 unit 3 lesson 4 Top notch 3 unit 2 lesson 1 Top notch 2 unit 3 lesson 2
