# Grade 7 » The Number System » Apply and extend previous understandings of operations with fractions. » 1 » b

Print this pageUnderstand *p* + *q* as the number located a distance |*q*| from *p*, in the positive or negative direction depending on whether *q* is positive or negative. Show that a number and its opposite have a sum of 0 (are additive inverses). Interpret sums of rational numbers by describing real-world contexts.