Subtracting integers
pre-test active
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michael is using a number line to evaluate the expression -8 - 3.

after locating -8 on the number line, which step could michael complete to evaluate the expression?
michael could rewrite the expression as -8+3 and move 3 spaces to the right.
o michael could rewrite the expression as -8+-3 and move 3 spaces to the right.
michael could rewrite the expression as -8+ 3 and move 3 spaces to the left.
michael could rewrite the expression as -8+-3 and move 3 spaces to the left.

Step-by-step explanation:

To evaluate the expression, Michael could rewrite the expression as -8+(-3), because that is equivalent to -8-3, both results in -11.

Also, by rewriting the expression, Michael can figure out that he first need to place at the location of -8, and then +(-3) means that has to move three units to the negative side, that is, to the left, that procedure will get him to -11.

Therefore, the right answer is the last one. Other options just don't make sense, because some rewrite the expression as -8+3, which is wrong, or they suggest to move to the right, which is also wrong.