NCTB Class 6 Math Chapter Three Exercise 3.1 Solution by Math Expert. Bangladesh Board Class 6 Math Solution Chapter 3 Integers Exercise 3.1 Solution.
Board 
NCTB 
Class 
6 
Subject 
Mathematics 
Chapter 
3 
Chapter Name 
Integers 
Exercise 
3.1 Solution 
Exercise : 3.1
(1) Write the opposite of the following in meaning:
Solution:
(1) (a) Decrease in weight.
(1) (b) 30km south.
(1) (c) The market is 8km to the west of the home.
(1) (d) Profit of T.K 700
(1) (e) 100m under sea level.
(2)Represent the numbers with appropriate sings in the following sentences.
Solution: (2) (a) + 2000m above the ground.
(2) (b) – 800m depth below the sea level.
(2) (c) + 200 deposit.
(2) (d) – 700 (With draw +from the bank.
(3) Place the following numbers on number line:
(4) Following is the list of temperatures of places of different countries on a particular day:
(a) Write the temperature of four places of different countries on a particular days.
Name of the place 
Temperature 
Blank column 
Dhaka 
30^{0}c above 0^{0}c 

Kathmandu 
2^{0} c below 0^{0}c 

Srinagar 
5^{0}c below 0^{0}c 

Ryad 
40^{0}c above 0^{0}c 
Solution:
Name of the place  Temperature  Blank column 
Dhaka 
30^{0}c above 0^{0}c 
+30^{0}c 
Kathmandu 
2^{0}c below 0^{0}c 
2^{0} c 
Srinagar 
5^{0}c below 0^{0}c 
5^{0}c 
Ryad 
40^{0}c above 0^{0}c 
+40^{0}c 
(4) (b) Following is the number line representing the temperature.
(5) In each of the following pairs, which number is to the right of the other on the number line?
Solution: (5) (a) 9 is the right number of 21
(5) (b) 3 is the right number of 8
(5) (c) 0 is the right number of 1
(5) (d) 10, is the right number of 11
(5) (e) 6, is the right number of 6
(5) (f) 1 is the right number of 101
(6) Write all the integers between the given pairs in the increasing order.
Solution: All the integers between 0 and 7 are —
6, 5,4,3,2,1
(7) (a) Write four negative integers greater than 20.
Solution: The four negative integers greater than 20 are –
19,18,17,16
(7) (b) Write four negative integers less 10.
Solution: The four negative integers less than 10 are —
11,12,13,14.
(7) (c) Write four negative integers between 10 and 5.
Solution: The four negative integer between 10 5 are –
6,7,8,9. Answer.
(8) For the following statements, write True (T) or False (F). If the statement is false, correct it.
(8) (a) 8 is to the right of 10 on a number line.
Solution: True.
(8) (b) 70 is to the right of 60 on a number line.
Solution: False.
(8) (c) Smallest negative integer is – 1.
Solution: True.
(8) (d) 26 is greater than 20.
Solution: False.
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