Question

4. What will be the sign of the product, if we multiply go negative integers and 9 positive
integers?
5. What will be the sign of the product, if we multiply 103 negative integers and 65 positive
integers?
6. Simplify:
(i) (-8)9+(-8) X7
(ii) 9 (-13)+9*(-7)
(111) 20 (-16) +20x14
(iv) (-16) (-15)+(-16) (-5)
(v) (-11) (-15) +(-11)X(-25)
(V) 10(-12)+5X(-12)
vin (-16)X(-8) + (-4) (-8)
(vii) (-26) x 72+(-26) 28
7. Fill in the blanks:
(i) (-6) (.....) = 6
(i) (-18) (.....)=(-18)
(iii) (-8)X(-9) = (-9) (.....)
(iv) 7*(-3) = (-3)*(.....)
(v) [(-5) 3} (-6)=(.....) x {3 x (-6)} (vi) (-5) (.....) = 0
8. 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 each question not attempted.
(1) Ravi gets 4 cprrect and 6 incorrect answers. What is his score?
(11) Reenu gets 5 correct and 5 incorrect answers. What is her score?
(iii) Heena gets 2 correct and 5 incorrect answers. What is her score?
9. Which of the following statements are true and which are false?
(1) The product of a positive and a negative integer is negative.
(ii) The product of two negative integers is a negative integer
(ill) The product of three negative integers is a negative integer.
(iv) Every integer when multiplied with -1 gives its multiplicative inverse.​

Answer 1

Answer:

happy Ganesh chaturthi

Answer 2

hindi ko alam HAHAHAHA