IM 8.7.12 Practice: Applications of Arithmetic with Powers of 10

① This practice problem from Illustrative Mathematics Grade 8 Unit 7 Lesson 12 demonstrates how arithmetic with powers of 10 is applied to real-world contexts, such as representing very large or very small quantities. ② Core mathematical concepts include scientific notation, exponent rules, order of magnitude, and unit conversion. ③ The construction is minimal: it includes points A and B and an image object pic1, likely used to illustrate a scenario or scale, without complex GeoGebra commands. ④ It is suitable for 8th-grade students as classroom practice or homework, reinforcing their understanding of exponents and scientific notation, and can also serve as a teaching example for instructors.