Question

I. Choose the correct answer.
1. Which of the following is correct?
a) 965 ÷ (-965) = 0
b) (-62) x10 =620
c) (-60) ÷ (-10) =6
d) (-1) x (-2) x (-3) =6
2. On a number line when we add a positive integer, we
move to
a) the right b) the left
c) zero d) left and right alternatively
3. The additive inverse of (-4) is
a) -4 b) 4 c)-5 d) 0
4. A pair of integers whose sum is other than (-10) is
a) (-8, -2) b) (2, -2) c) (-6, -4) d) (-7, -3)
5._________ x (-9) = -72
a) -8 b) -7 c) 8 d) -9
6. The additive identity of (-23) is
a) -1 b) 0 c)-23 d)1
7. (-41) ÷ [(-40) + (-1)] is
a) 1 b) 2 c)3 d) 4
8. Which of the following is incorrect?
a) (-18) x 8 x (-4) > 0
b) [7 x (-6)] + 42 =0
c) (-32) ÷ [(4x2) + 8] < 0
d) [(-16) ÷ 4] ÷ (-2) < 0
II. Fill in the blanks:
i) (-42) + ---------- = 0
ii) (-28) ÷ ----------- = (-4)
iii) (-6) x ----------- = (-12)
iv) ---------- ÷ (-1) = (-284)
v) ----------- x 1 = (-496)
vi) (-15) + 148 = ------------- + (-15)
III. State true or false:
i) Any integer divided by 0 gives 0.
ii) The product of 12 negative integers is a negative
integer.
iii) Quotient of 2 negative integers is negative.
iv) (-1) multiplied by itself for 1000 times will give 1.
IV. Do as directed:
9. Write a pair of positive and negative integers whose sum
is (-20)
10. Add 300, -41, -72
11. Use a number line and find out (-9) + 2
12. The temperature of Delhi which was 420
c fell by 20
c each
day for a week. What is the temperature after the whole
week?
13. Show with an example that the product of three
negative integers is a negative integer.
14. Use appropriate property to solve
4 + (-8) + 6 + (-2)
15. Hazel started a game of monopoly with Rs.70. She had
to pay Rs.25 as tax and she received Rs.10 as rent of one of
her sites. Again, she won Rs.20 by way of lottery and was
then fined Rs.50 for over speeding. How much money was
left with her at the end of the game?
16. Start with the integer -8. Add -12 to it, subtract 10 from
the result. Divide the result by 3 and multiply the answer by
-2. What do you get?
17. The product of three integers is -600. If two of them are
-15 and 10, find the third integer.
18. A boy threw a marble 28m vertically up in the air which
later fell and settled on the bottom of the pond 12m
deep. By how much distance did the marble fall?
Air
28m
Ground
---------------------------------------
-Water---------------------12m---
-----------------------------------------
19. Vaibhav is an enthusiastic sports boy. While
practising long jump, he managed 90 cm on first day.
Second day onwards he managed to jump 2 cm longer
than the previous day and so on. On the sixth day,
how long did he jump?
20. Find the value of:
(-10- 10) ÷ {-10- (-10- 10)}
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Answer 1

Step-by-step explanation:

hope this will help you

Answer 2

Step-by-step explanation:

Mark as brainlist please