Question

What is another way to write to 72- (-25) ?

1. 72+25
2. -72 -25
3.72 - 25
4. -72 -(-25)

Answer 1

1. 72+25

Explanation:

To subtract, you add the opposite.

a - (-b) = a + b

72 - (-25) = 72 + 25

Answer: 1. 72+25

Answer 2

Your answer would be 1, or 72+25.

What is happening in this case is a negative number is being subtracted from a positive. This means you are taking away a negative. The two negatives cancel each other out, and then it becomes you are adding a positive.

Another way I like to think about this is the two minus symbols combine together to form a plus sign.

Hope this helped!