Exercise 5.1 class 9 question 3 July 8, 2019 16 32 64 128 Class 9 math exercise 5.1 question 3 Exercise 5.1 question number 3 class 9 Unit 9 exercise Workbook 5 unit 9 English workbook grade 9 unit 5 Grade 5 module 5 lesson 9 problem set Eureka math grade 5 module 3 lesson 9 homework