danny499 danny499 19-10-2022 Mathematics contestada Complete the description of how to find the sums −4 + 1 and −4 + (−1) on a number line. To find −4 + 1, start at −4 and move 1 unit to the _____ to _____. To find the sum −4 + (−1), start at −4 and move 1 unit to the ______ to ______
