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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 m, wreck m. Height difference 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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