# Ch – 1 Integers

Q.1: Additive inverse of 9 is ______.

a) 9

b) (-9)

c) 0

Q.2: (-53) + (-73) = _________

a) (-20)

b) 126

c) (-126)

Q.3: Complete the pattern : (-11) , (-7), (-3), _______, ________

a) 1, 5

b) (-6), (-2)

c) (-1), 0

Q.4: On a number line, when we add a negative integer, we move to the _________.

a) left

b) right

c) up

Q.5: The sum of a number and its additive inverse is _________.

a) 1

b) same number

c) 0

Q.6: On a number line, when we subtract a negative integer, we move to the __________.

a) left

b) right

c) down

Q.7: ____________ is not commutative for integers.

b) subtraction

c) multiplication

Q.8: 8 + (-7) -(-4) can also be written as ________________.

a) 7 + 8 + 4

b) 8 – 7 + 4

c) 8 + 7 – 4

Q.9: On a number line, when we subtract a positive integer, we move to the __________.

a) left

b) right

c) down

Q.10: Compare : (-18) + (-26) ______ 32 – 76

a) >

b) <

c) =

Q.11: __________ is the additive identity for integers and whole numbers.

a) 0

b) 1

c) (-1)

Q.12: The difference of ________ and _________ is 10.

a) 0, (-10)

b) (-20), 10

c) (-20), (-10)

Q.13: If the number of negative integers in a product is even, then the product is a ____________ integer.

a) negative

b) positive

c) none

Q.14: Identify the property: 7 x [ (-2) + (-5) ] = 7 x (-2) + 7 x (-5)

a) associative

b) commutative

c) distributive

Q.15: (-5) x (-6) x (-10) x (-1) = _________

a) (-300)

b) (-301)

c) 300