Question

Simplify the following:
i) 72-90 ii) (-20)-(-40) iii) (-35) – 54
iv) (-7) + (-8) + (-90)
V) 1954 + (-2010) + (-1979)

please give me correct answer for this all questions​

Answer 1

Question:

Simplify the following:

i) 72-90

ii) (-20)-(-40)

iii) (-35) – 54

iv) (-7) + (-8) + (-90)

v) 1954 + (-2010) + (-1979)

Answer:

i) 72-90 = -18

ii) (-20)-(-40) = -20 + 40 = 20

iii) (-35) – 54 = -89

iv) (-7) + (-8) + (-90) = -105

v) 1954 + (-2010) + (-1979) = -2035

Extra Information:

• When a negative integer subtracts with a positive integer the result is always negative.
• When a positive integer subtracts with a positive integer the result can be negative or positive or 0.
• When a negative integer subtracts with a negative integer the result can be negative or positive or 0.

Answer 2

$\huge \mathbb { \underline { \purple {ANSWER}}}$

Question:

Simplify the following:

i) 72-90

ii) (-20)-(-40)

iii) (-35) – 54

iv) (-7) + (-8) + (-90)

v) 1954 + (-2010) + (-1979)

Answer:

i) 72-90 = -18

ii) (-20)-(-40) = -20 + 40 = 20

iii) (-35) – 54 = -89

iv) (-7) + (-8) + (-90) = -105

v) 1954 + (-2010) + (-1979) = -2035

Extra Information:

• When a negative integer subtracts with a positive integer the result is always negative.
• When a positive integer subtracts with a positive integer the result can be negative or positive or 0.
• When a negative integer subtracts with a negative integer the result can be negative or positive or 0.