1. Consider the subtraction expression 9 + (–10) on the number line shown. Explain how you would evaluate the expression on the
number line. A. Begin at 10 and move 9 units to the right
B. Begin at 9 and move 10 units to the left
C. Begin at 10 and move 9 units to the left
D. Begin at 9 and move 10 units to the right
The answer is B: Begin at 9 and move 10 units to the left.
Step-by-step explanation:
If you move to the left on a number line, you are subtracting. If you move to the right, you are adding. If you add -10 to a number, you are, in other words, subtracting 10 from the number.
Answer: If i am correct the answer should be 9-10 because if it is -8 it takes 8 to bring it to 0 and it takes 9 to bring it to 1 and it takes 10 to bring it to 2.
