Integers
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Q1
If we add 13 to the difference of 7 and 5, then, we get
Marks:1Answer:
25.
Explanation:
Difference of 7 and 5 = 7  5 = 12. Now, 12 + (13) = 12  13 = 25. 
Q2
The sum of –50 and –200 is
Marks:1Answer:
–250
Explanation:
(–50) + (–200)
= –50 – 200
= –250 
Q3
The opposite of ‘increase in weight’ is
Marks:1Answer:
decrease in weight
Explanation:
If +20 represents increase in weight, then 20 represent decrease in weight of 20.
So, opposite of "increase in weight" is "decrease in weight".

Q4
The sum of two integers is 23. If one of the integers is 11, the other integer is
Marks:1Answer:
34
Explanation:
Let required integer be x.
Then according to question,
x + (11) = 23
x = 23 + 11 = 34. 
Q5
If we are at –6 on the number line, in which direction should we move & by how many jumps to reach –1?
Marks:1Answer:
Right by five jumps
Explanation:
–1 is towards the right hand side of –6. So, we will move towards right and by 5 jumps