# Resource 6: Examples of Activity 3

## Adapting Exercise 1.6 (p. 26 in NCERT textbook Class IX, Chapter 1)

Exercise 1.6

 1. Find: (i) (ii) (iii) 2. Find: (i) (ii) (iii) (iv) 125 times negative one divided by three 3. Simplify: (i) two times two divided by three postfix times postfix times (ii) open one divided by three cubed close super seven (iii) divided by (iv) postfix times

• What is the same and what is different in the methods for solving these questions?
• Make up two additional parts for Questions 1, 2 and 3 above. One of these questions has to be easy and one has to be hard. Make sure you can work out the solution yourself!

## Adapting Exercise 1.2, Question 1 (p. 8 in NCERT textbook Class IX, Chapter 1)

Exercise 1.2

1. State whether the following statements are true or false. Justify your answers.
• i.Every irrational number is a real number.
• ii.Every point on the number line is of the form , where m is a natural number.
• iii.Every real number is an irrational number.