Question

7(10 + 5) so I would add 10 plus 5 and multiply it by 7?

Answer 1

Yes, that's right!
It would also yield the same result if you distribute—multiply 10 by 7 as well as 5 by 7 then add the two together.
Either way, you'll get the correct answer! xx

Answer 2

That is what you would do. How ever you could also distribute the 7 to both the 10 and the 5 and then add the two numbers together. Either way you should get the same number.