Question

Find the sum of 47°28'55" and 20°36'52"
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Answer 1

(a) 137 and – 354

(b) – 52 and 52

(c) – 312, 39 and 192

(d) – 50, – 200 and 300

Solution 4

a) 137 and – 354

= 137 + (-354)

= -217

b) – 52 and 52

= -52 + 52

= 0

c) – 312, 39 and 192

= -312 + 39 + 192

= -81

d) – 50, – 200 and 300

= -50 + (-200) + (300)

= 50