Question

After you do keep, change change to -8-13 which addition expression dose it become?

A –8 + 13
B 8 – 13
C 8 + 13
D –8 + (–13)

Answer 1

The subtraction expression -8 - 13 becomes -8 + (-13) when applying the keep-change-change rule, which corresponds to choice D.

Step-by-step explanation:

The student is asking about the process of converting a subtraction of integers to an addition expression, specifically converting -8 - 13 using the keep-change-change rule. According to this rule, you keep the first number, change the subtraction to addition, and then change the sign of the second number.

If we apply this to -8 - 13, it becomes:

• Keep the -8,
• Change the subtraction to addition,
• Change the sign of 13 to negative.

Therefore, the expression -8 - 13 becomes -8 + (-13), which is equivalent to choice D: -8 + (-13).