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S.chand publication solution of class 6 chapter 3 exercise 3 A

EXERCISE 3 A


1.Write ‘T’ for True or ‘F’ for False for the following statements.
(i) Zero is not an integer as it is neither positive nor negative.
(ii) -2 is to the left of —5 on the number line.
(iii)All whole number are integers.
(iv) Since 12 > 7. therefore -12 > -7
(v) -2 , -3 , 0 , 5 , 8 is a set of integers arranged in ascending order .

2. Fill in the blanks
(i) The greatest negative integers is ___
(ii) The opposite of winning by a margin of 400 votes is ___
(iii) -103 ___ -101 (>,<)
(iv) Number of even integers lying between -11 and 5 is ___ .
(v) The ___ value of -16 and 16 is the same .

3. Write the opposites of the following.
(i) 50 km south
(ii) Withdrawing Rs 100 from the Bank Account
(iii) Increase in temperature
(iv) Losing by 15 runs
(v) 2016 AD
(vi) 20 m belowthe sea level.

4. Write an integer to name the number in the given sentences
(i) The elevator is 2 floors below the street level .
(ii) The temperature is 40 degrees above zero .
(iii) Moving 8 steps backword
(iv) A loss of Rs 160

5. Write the opposites of
(i) -20
(ii) 311
(iii) 0
(iv) -46

6. Mark the following integers on a number line

(i) -7
(ii) 0
(iii) 3
(iv) -5
(v) -10

7. Write :
(i) All integers between -5 and 2
(ii) All integers between -3 and -10
(iii) All evening integers between -12 and 1
(iv) All multiples of 3 between -28 and -13

8. Write < or > to compare each of the following pairs of integers
(i) 8 ___ 3
(ii) 0 ___ -7
(iii) -12 ___ -8
(iv) 1 ____ -6
(v) -43 ____ 34
(vi) -256 ____ -210
(vii) 25 ____ -37
(viii) 100 ____ -100

9. Arrange the following sets of integers in increasing order .
(i) 2 , -4 , 0 , -8 , 1 , 6
(ii) 10 , -16 , 4 , -20 , -7 , 2
(iii) 21 , -15 , -9 , 3 , -20 , 6
(iv) 123 , -321 , -132 , 213 , -231 , 132

10. Arrange the following sets of integers in descending order .
(i) -4 , 3 , 0 , -6 , 10 , -2
(ii) 8 , -13 , -6 , 10 , 0 , -5
(iii) 8 , -23 , -46 , -32 , -29 , 0
(iv) -542 , -524 , -452 , -205 , -254 , -425

11. Using a number line write the integer which is
(i) 6 more than -11
(ii) 4 less than -2
(iii) 5 less than -4
(iv) 3 more than -8

12. Write the value of each of the following .
(i) |-8|
(ii) |21|
(iii) -|15|
(iv) -|-12|
(v) |-4|\div |4|
(vi) 8|-3|
(vii) |16-4|\div |-3|
(viii) |9-2|*|2-2|

 

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