Exercise 6.1

1. Represent the following numbers as integers with appropriate signs.

(a) An aeroplane is flying at a height three thousand metre above the ground : .

(b) The fish is 10 meters below the water surface. : .

(c) The temperature in Hyderabad is 35°C above 0°C : .

(d) Water freezes at 0°C temperature. : .

(e) The average temperature at the Mount Everest in January is 36°C below zero degree. : .

(f) The submarine is 500 meters below the surface of the sea. : .

(g) The average temperature at Dargeeling in July is 19°C below zero degree. : .

(h) The average low temperature in Visakhapatnam during January is 18°C. : .

2.)Write any five negative integers.

Answer:

320–270–165, –270–165–89, –165320–270, –89–7320, –270–165–89

3.) Write any five positive integers.

Answer:

94175236, 175696, 236348175, 348694, 6236348

3) Mark the integers on the number line given below.

Instructions

(a) - 4

(b) – 3

(c) + 2

(d) – 0

(e) – 1

(e) – 5

Continue

5.Write True or False. If the statement is false, correct the statement.

i) – 7 is on the right side of – 6 on the number line. False True

(correct: – 7 is on the side of – 6 on the number line.)

ii) Zero is a positive number. False True

(correct: Zero is neither nor )

iii) 9 is on the right side of zero on the number line. True False

iv) -1 is an integer which lies between – 2 and 0. True False