Use number line and add the following integers:
(–1) + (–2) + (–3)
As per the question, we have to find (-1) + (-2) + (-3)
(-1) + (-2) + (-3) = -1 -2 -3
So, to find the value we will follow the steps:
(i) make a number line
(ii) start with the number -1 on the number line.
(iii) move 2 units to the left of -1 on the number line. We reach the point -3.
(iv) Now, we move 3 units to the left of (-3). We reach the point (-6).
Hence, (-1) + (-2) + (-3) = (-6)