Solve problem 2 on page 80 of Math 5 textbook, Focus practice, Find x:

Solution Method:
- Simplify the right-hand side by performing the given calculations
a) To find the unknown factor, divide the product by the known factor
b) To find the divisor, divide the dividend by the quotient. 

Answer:
a) X x 100 = 9                                   b) 0.16 : X = 1.6
=> X = 9 : 100                                   => X = 0.16 : 1.6
=> X = 0.09                                       => X = 0.1

Section Math Solution Grade 5 Page 80, Concentrated Practice consists of 4 exercises, Next, solving exercise 2 on page 80 of Math Textbook Grade 5. Mytour provides detailed answer hints and solving methods forSolving Exercise 1 Page 80 Math Textbook Grade 5, Solving Exercise 3 Page 80 Math Textbook Grade 5 and Solving Exercise 4 Page 80 Math Textbook Grade 5, students need to grasp the knowledge of this lesson.