Question

Christine is finding the sum; 28(-15)+22 A: what property of addition could christine use to write the integers in a diffrent order? Explain why she might do this. B: find the sum of 28+(-15)+22 PSA: you can solve A or you can Solve B. if you want, you can solve Both. :)

Answer 1

Step-by-step explanation:

I'm sorry if my terminology isn't correct because I've learnt it slightly differently, but what I'm assuming is this:

For A, you can rewrite the integers as 28-15+22 as a + and a - next to each other result in a subtraction.

For B, you simply do 15+22 is 37 and 28-37 is -9 due to BIDMAS (or PEDMAS if you're American).