INTEGERS || GRADE 7 MATHEMATICS | VIDEO NO. 11 #rolandoasisten The Chinese are credited for being the first civilization to use negative numbers as far back as 200 B.C.E. Chinese merchants wanted to keep track of the items they bought and sold. They used a system of color-coded rods, with red rod representing items bought, and black rods representing items sold. If they bought more items than they sold, they were said to be in the red or negative. Now, thousands of year later, still the best met