Question
Use a number line to evaluate the following:
3 + (-7)
3 + (-7)
✓
Answer
$
3+(-7)
$
For 3 , move 3 units right of 0 and then, for (-7) move 7 units to left of 3
$
\therefore 3+(-7)=-4 \text {. }
$
3+(-7)
$
For 3 , move 3 units right of 0 and then, for (-7) move 7 units to left of 3
$
\therefore 3+(-7)=-4 \text {. }
$
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