Practice the questions given in the worksheet on use of integers as directed numbers. We know, when numbers represent direction, the numbers are called directed numbers.

**1.** If +100 represent a gain of $ 100; what does each of the following represent:

(i) -18

(ii) +25

(iii) +39

(iv) -52

**2.** If a rise in temperature by 30° C is represented by +30; what does each of the following represent:

(i) +50

(ii) 0

(iii) -42

(iv) -29

**3.** If moving of 16
m due West is given by +16; what is given by:

(i) 72

(ii) -13

(iii) 50

(iv) -27

**4.** A speed of 3
m/s towards North is represented by +3; what is represented by:

(i) +7

(ii) -5

(iii) -9

(iv) +12

**5.** Walking 50 km
towards South is denoted by -50; what is denoted by:

(i) +10

(ii) -25

(iii) -60

(iv) +35

**6.** 25 m below the
earth’s surface is given by -25; state, what is given by:

(i) -3

(ii) +10

(iii) +35

(iv) -15

**7.** If giving of $
200 is denoted by +200;

(i) Giving of $ 31 will be denoted by __________

(ii) Taking of $ 81 will be denoted by __________

**8.** A person walks 80 m due North and then 63 m due South. Find his position with respect to his starting point.

**9.** The temperature of a body first rises by 20° C and then falls by 27° C. Find the final temperature of the body, if it’s initial temperature is;

(i) -42° C

(ii) 0° C

(iii) 33° C

**10.** The temperature of a body first falls by 19° C and then rises by 38° C. Find the final temperature of the body, if it’s initial temperature was;

(i) -65° C

(ii) - 19° C

(iii) 7° C

Answers for the worksheet on use of integers as directed numbers are given below to check the exact answers of the above problems on integers.

**Answers:**

**1.** (i) Loss of $ 18

(ii) Gain of $ 25

(iii) gain of $ 39

(iv) Loss is $ 52

**2.** (i) Rise in temperature by 50° C.

(ii) No change in temperature.

(iii) Fall in temperature by 42° C

(iv) Fall in temperature by 29° C

**3.** (i) Moving 72 m due West.

(ii) Moving 13 m due East.

(iii) Moving 50 m due West.

(iv) Moving 27 m due East.

**4.** (i) Speed of 7 m/s towards North.

(ii) Speed of 5 m/s towards South.

(iii) Speed of 9 m/s towards South.

(iv) Speed of 12 m/s towards North.

**5.** (i) Walking 10 km towards North.

(ii) Walking 25 km towards South.

(iii) Walking 60 km towards South.

(iv) Walking 35 km towards North.

**6.** (i) 3 m below the earth’s surface

(ii) 10 m above the earth’s surface

(iii) 35 m above the earth’s surface

(iv) 15 m below the earth’s surface

**7.** (i) +31

(ii) -81

**8.** 17 m due North

**9.** (i) -49° C

(ii) -7° C

(iii) 26° C

**10.** (i) -46° C

(ii) 0° C

(iii) 26° C

**Math Home Work Sheets**

**From Worksheet on use of Integers as Directed Numbers to HOME PAGE**

**Didn't find what you were looking for? Or want to know more information
about Math Only Math.
Use this Google Search to find what you need.**

## New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.