Question
Use a number line to evaluate the following:
(-1) + (-2)
(-1) + (-2)
✓
Answer
$
(-1)+(-2)
$
for -1 , start from zero and move one units to the left and then again for -2 , move 2 units to left of -1 .
$
\therefore(-1)+(-2)=-3 \text {. }
$
(-1)+(-2)
$
for -1 , start from zero and move one units to the left and then again for -2 , move 2 units to left of -1 .
$
\therefore(-1)+(-2)=-3 \text {. }
$
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