Question

7.) Find the value of each of the following.
(a) -55 + (-10) - 10
(b) –12 - [(-8) -(-2)] + 3
(c) -100 + (-45) + (-5) + 20
(d) -2 + 3 x 15
(e) (-5 - 2) (-3)
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Answer 1

Answer:

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Answer 2

Answer:

7.a) -55 + (-10) - 10

= -55-10-10

= -65-10

= -75

b)–12 - [(-8) -(-2)] + 3

= -12 - (-8+2)+3

= -12 -(-6)+3

= -12 + 6 + 3

= -6+3 = -3

c) -100 + (-45) + (-5) + 20

= -100-45-5+20

= -145 -5 +20

= -150+20

= -130

d) -2 + 3 x 15

= -2+ 45

= 43

e)(-5 - 2) (-3)

= -7×-3

=24

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