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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

Respuesta :

isk102008

Answer:

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.


gabby5792
The answer is B

The equation is saying positive 9 plus a negative 10

Subtraction

It says take 10 away from nine

Moving left on the number line is subtracting
Moving right is adding

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