NCTB Class 6 Math Chapter Three Exercise 3.1 Solution

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	300c above 00c
Kathmandu	20 c below 00c
Srinagar	50c below 00c
Ryad	400c above 00c

Solution:-

Name of the place	Temperature	Blank column
Dhaka	300c above 00c	+300c
Kathmandu	20c below 00c	-20 c
Srinagar	50c below 00c	-50c
Ryad	400c above 00c	+400c

(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 -10-1

(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.