Question

Find the sum of :
(a) 137 and – 354
(b) – 52 and 52
(c) – 312, 39 and 192
(d) – 50, – 200 and 300

Answer 1

(a) 137 and –354
\(= 137+(-354)\)
\(= 137-354\)
\(= -217\)

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(b) –52 and 52
\(= (-52)+52\)
\(= 0\)

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(c) –312,39 and 192
\(= (-312)+39+192\)
\(= -312+39+192\)
\(= -312+231\)
\(= -81\)

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(d) –50,–200 and 300
\(= (-50)+(-200)+300\)
\(= -50-200+300\)
\(= -250+300\)
\(= 50\)