Addition of Integers

Q. Choose the pair of integer whose sum is -3

1. -2, -2
2. -2, -1
3. -5, 3
4. 4, -1

Q.

Please explain this statement additive inverse of an integer 8 is (-8)and Additive inverse of (-8) is 8.

Q.

By how much does 2 exceed (-3)

Q.

The sum of two positive integers is ______.

1. Both positive and negative

2. Positive or negative

3. Negative

4. Positive

Q.

Please explain this statement(-10)+3=10-3

Q.

Mark the correct alternative for

$(-1)+(-1)+(-1)+....500$ times?

1. 
   -500
2. 
   500
3. 
   1
4. 
   -1

Q.

Find the following product: $(-1)\times 225$

Q. A rice bag weighs 1.5 kg & a wheat bag weighs 2 kg. There are 4 rice bags. Minimum no. of wheat bags required so that wheat weighs more than rice is

1. 3
2. 5
3. 4
4. 2

Q.

Which of the following properties are satisfied by addition of integers?

1. Closure Property

2. Commutative Law

3. Associative Law

4. Distributive Law

Q. A deep well has steps inside it. A monkey is sitting on the topmost step (i.e. the first step). The water level is at the ninth step. To go one step down, the monkey jumps 3 steps down in the first jump and then jumps back 2 steps up in the second jump, how many jumps does it have to make to reach the water level?

1. 5
2. 9
3. 11
4. 7

Q. Write a negative integer and positive integer whose difference is -3

Q.

(a) Write a pair of negative integers whose difference gives 8.

(b) Write a negative integer and a positive integer whose sum is − 5.

(c) Write a negative integer and a positive integer whose difference is − 3.

Q.

Find the value of $23-(-12)$.

Q. For an integer a, what is (-1) x (-1) x (-1) x (a) equal to?

1. -1
2. a
3. 1
4. -a

Q.

-100 - (-172) =

Q. The sum of two rational numbers is $\frac{-7}{12}$. If one of them is $\frac{13}{24}$, find the other.

1. $\frac{-4}{15}$
2. $\frac{-9}{13}$
3. $\frac{-5}{12}$
4. $\frac{-9}{8}$

Q. Find the sum of the first three odd numbers.

1. 9
2. 8
3. 6
4. 4

Q.

Write down a pair of integers whose:

(a) sum is − 7

(b) difference is − 10

(c) sum is 0

Q.

The closure under addition/subtraction for integers tells that if you add/subtract two integers, you will always get an integer as the result. Say true or false.

1. True

2. False

Q.

Evaluate the following.

$64-48+151-123+(-124)-(-167)$

Q.

Question 4(i)

Give expressions for the following cases.

7 added to p.

Q.

Simplify the expressions.

$4.2v-5-6.5v$

Q.

Amar and Anita spent $₹75,550$ on food, $₹1,20,690$ on school fees and bus fees, and $₹2,25,300$ on other expenses. What was their total expenditure $?$ If they had $₹5,00,000$ with them, find the balance amount with them.

Q.

If $m=2$, find the value of $\frac{5m}{2}-4$.

Q. The profit of a company for the years 2003 and 2004 is compared for the 4 quarters. What is the average profit gained by the company in 2004 for all the quarters ?

1. 50, 000
2. 60, 000
3. 70, 000
4. 80, 000

Q.

In a water tank, the water level is at $18$steps below the top, A frog wants to go out of the tank he jumps $4$ steps up and two steps down with every move. In how many jumps he will be out of the tank

Q.

Question 2 (i)

Ifp = -2, find the value of:
4p + 7

Q.

Write the opposite of: $-40$

Q.

Subtract: $-72from-34$

Q. Find the following products:
$(-21)\times (-30)$