This Fluency Activity is a part of the Lesson 34, Unit 3, Grade 4. In this lesson, students discover that a two-digit multiple of 10 times another two-digit number is the same as 10 times n-whole number times another two-digit number, e.g., 30 x 14 = 3 x 10 x 14. This fluency activity reviews content from Lessons 32 and 33.