Add or Subtract the Integers Without a Calculator

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Add or subtract the integers without a calculator.

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Definitions:

Dyeing

The process of changing the color of materials, such as fabrics or hair, using natural or synthetic dyes.

Kalabari Ancestral Screen

A sculptural piece created by the Kalabari people of Nigeria, used in ceremonies to honor and remember deceased ancestors.

Equatorial Trade Winds

Prevailing wind patterns near the equator, blowing from the east to the west, and playing a significant role in global weather and navigation.

Slave Trade

The historical practice of buying, selling, and trading enslaved people, often across continents, with profound human and societal impacts.