Solve the following problem:
16+(−20)= 16+(-20)= 16+(−20)=
Let's locate the number 16 on the number line, then move 20 steps to the left from it (since minus 20 is less than zero):
-2-2-2000222444666888101010121416-4
We can see that we have reached the number minus 4.
−4 -4 −4