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Question

Find:

(a) (−7) − 8 − (− 25)

(b) (−13) + 32 − 8 − 1

(c) (−7) + (− 8) + (− 90)

(d) 50 −(− 40) − (− 2)

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Solution

(a) −7 − 8 − (−25) = − 7 − 8 + 25 = −15 + 25 = 10

(b) (−13)+ 32 − 8 − 1 = − 13 + 32 − 8 − 1 = 32 −22 = 10

(c) (−7)+ (−8) + (−90) = − 7 − 8 − 90 = −105

(d) 50 −(−40) − (−2) = 50 + 40 + 2 = 92


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