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Question

-13 + (-69) + 57 - (-89) - (53 + (-49)) =


A
50
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B
60
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C
70
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D
80
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Solution

The correct option is B 60

-13 + (-69) + 57 - (-89) - (53 + (-49))

= -13 - 69 + 57 + 89 - (53 - 49)

= -13 - 69 + 57 + 89 - 53 + 49

First, take all the negative terms and then take all the positive terms and add them,

= (-13 - 69 - 53) + (57 + 89 + 49)

= -135 + 195

= 60


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