The scale shows heights above and below sea level in metres. How many metres above the shipwreck is the peak of the hill?
Class 6IntegersIntegers
A400 m
B700 m
C1,000 m
D1,100 m
Step-by-Step Solution
Peak =+700 m, wreck =−300 m. Height difference =700−(−300)=700+300=1000 m.
Answer: C) 1,000 m
Key idea: Adding integers — same sign
When two integers have the **same sign**, add their absolute values and keep the sign. So 4 + 3 = 7 (both positive → result positive), and (−4) + (−3) = −7 (both negative → result negative). On the number line: same sign means you keep moving in the same direction.
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