Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c9a7f59b460d7261e9ea.JPG' /> Following number line shows the temperature in degree celsius (°C) at different places on a particular day. What is the temperature difference between the hottest and the coldest places among the above?

Question 5 :
If $\triangle$ is an operation such that for integers a and b we have $a\ \triangle\ b=a\times a+b\times b-a\times b$, then find $\left(-3\right)\ \triangle\ 2$.

Question 8 :
If a is an integer other than 1 and –1, $(-a)\div(-a)$=

Question 9 :
Use the sign of >, < or = in the blank to make the statement true: 23 - 41 + 11 _____ 23 - 41 - 11

Question 10 :
The temperature at 12 noon was 10$^{\circ}$C above zero, If it decreases at the rate of 2$^{\circ}$C per hour until midnight, what would be the temperature at mid-night?

Question 11 :
Fill in the blank: (–5) + (– 8) = (– 8) + (............)

Question 12 :
Mohan deposits Rs. 2,000 in his bank account and withdraws Rs. 1,642 from it, the next day. If withdrawal of amount from the account is represented by a negative integer, then how will you represent the amount deposited?

Question 13 :
For the two given numbers check whether their sum is between -11 and -4: 1 and (-5).

Question 15 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cab6f59b460d7261eb53.png' /> Above number line shows the temperature in degree celsius ($^{\circ}C$) at different places on a particular day. Observe this number line and write the temperature of Shimla marked on it.

Question 16 :
Use the sign of >, < or = in the box to make the statements true. – 231 + 79 + 51 ___-399+159+81

Question 17 :
In a class test containing 10 questions, 5 marks are awarded for every correct answer and (–2) marks are awarded for every incorrect answer and 0 for questions not attempted. Heena gets two correct and five incorrect answers out of seven questions she attempts. What is her score?

Question 18 :
Use the sign of >, < or = in the box to make the statements true. (– 8) + (– 4)___ (–8) – (– 4)

Question 19 :
Which of the following are the pair of integers whose difference is - 3.