Question

3. In a quiz, positive marks are given for correct answers and
given for incorrect answers. If Rohit's scores in five successive
-7, 12 and 8, what was his total at the end?
4. Ruchi deposited 4370 in her account on Monday and then
Tuesday. Next day she deposited 1550. What was her balar
5. Evaluate the following:
(i) -13 - 191
(ii) 13-51-1-91 (iii) 135 - 211 -
6. Arrange the following integers in ascending order.
-39, 35, -102, 0, -51, -5, -6,7
7. Arrange the following integers in descending order:
-31, 139, -203,-97, 0, 4208
8. State whether each of the following statement is true or fa
(1) O is the successor of -1 in integers
(ii) O has no predecessor in integers
(iii) -2 is the predecessor of -1
(iv) 0 is greater than every negative integer.
9. Use the sign >, < or = in the box to make the followings
(1) (-11) + (-7) O (-11) - (-7)
(ii) 23 – 41 + 11 D23 - 41 - 11
(iii) 40 - (-39) + (-5) 40 + (-39) - (-5)
(iv) (-3) + 13 - (15) 25 -(-2) + (-33).
PROPERTIES OF ADDITION OF INTEGERS
Closure under addition
Let us add any two integers and check whether the sum is
Integer
Sum
Integer
13
9
13 + 9 = 22
-13
-9
(-13) + (-9) =
-17
23
(-17) + 23 =
Thus, we find that the sum of two integers is an integ
If a and b are any two integers, then a + b
This is called closure property of addition of intege​

Answer 1

Answer:

sorry l don't know okkkkk have a nice day

Answer 2

Answer:

1)

Answer:-

Rohit score=

$- 7 + 12 +8 = 13$

So,His total points at the end is=13.