Class 6 : Chapter 6 : Exercise 6.1

1 . Write Opposites of the following :

a) Increase in weight
        Decrease in weight

b) 30km North
        30km South

c) 80m east
        80m West

d) Loss of Rs 700
         Profit of Rs 700

e) 100m above sea level
         100m below sea level


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

a) An aeroplane is flying at a height two thousand meter above the ground level.

  Solution

        Given, above the ground level  which implies +
   so, the given expression can be represent as +2000m

b) A submarine is moving at a depth , eight hundred meter below the sea level.

   Solution

        Given, below the sea level  which implies -
   so, the given expression can be represent as -800

c) A deposit of Rs 200. 

  Solution

        Given,  deposit which means saving so its +
    so, the given expression can be represent as + Rs 200

d) Withdrawal of Rs 700.

Solution

         Given,  withdrawal which means takingout so its -
    so, the given expression can be represent as -Rs 700

3 . Represent the following numbers on a number line.

a) +5
b) -10
c) +8
d) -1
e) -6

Solution