NOTE: Answers to all questions are given at the end of this exercise.

__Question No. 1:__

**Copy and complete the following:**

**(i) An ascent of -20 m means a descent of m.**

**(ii) A clockwise rotation of -90° means an anticlockwise rotation of .**

**(iii) Walking 9 km from East to West means walking km from West to East.**

__Question No. 2:__

**Copy and complete the following:**

**(a) If -6 represents 6 m below sea level, then +30 represents .**

**(b) If +40 represent depositing $40 in the bank, then a withdrawal of $35 is .**

**(c) If +60° represents rotating 60° clockwise, then -30° represents .**

**(d) If +45 represents a speed of 45 km/h of a car moving to the East, then -45 represents .**

__Question No. 3:__

**Suppose time is measured in years and zero stands for the year 2000.**

**(a) What number stands for the year 1999?**

**(b) What number stands for the year 2002?**

**(c) What number stands for the year 1996?**

** **

__Question No. 4:__

**Put the correct sign, < or >, between each pairs of temperatures below.**

**(a) -4****°, 4°** **(b) 8****°, -2°**

**(c) -13****°, -5°** **(d) -1****°, 5°**

**(e) -3****°, -4°** **(f) -20****°, -19°**

** **

__Question No. 5:__

**Translate each of the following equation into a mathematical statement using either < or a > sign:**

**(a) A temperature of -5****° is colder than a temperature of 12°.**

**(b) A gain of $200 is better than a loss of $120.**

**(c) A depth of a 40 m below sea level is lower than a depth of 25 m below sea level.**

** **

__Question No. 6:__

**Arrange the numbers in each group in ascending order.**

**(a) -2, -6, 0, -60, -90**

**(b) … , -1500, 2, -1**

** **

__Question No. 7:__

**Use a number line to illustrate each of the following:**

**(a) -5, -2, 0, 5, -3**

**(b) …. , -10, -8, -6, -4**

**(c) The set of integers greater than -4 and less than 2**

**(d) The set of integers between -2 and +6**

** **

__Question No. 8:__

**Fill in the boxes with > or < :**

**(a) +8 □ -8** **(b) -11 □ -6**

**(c) 0 □ -2** **(d) (-12)² □ -200**

**(e) -√64 □ ³√125** **(f) ³√-27 □ -√16**

**Answers**

**(from left to right)**

## Leave a Reply