Exercise 5.1 question number 3 class 9 July 8, 2019 16 32 64 128 Class 9th math exercise 5.1 question number 3 Lesson 9 homework 3.4 Lesson 9 homework 3.5 Lesson 9 homework 1.3 Eureka math grade 5 module 3 lesson 9 homework Unit 9 exercise