Question

@alyssa_michelle96 99+88=? Use casting out 9's

Answer 1

I only want Alyssa in here.

Answer 2

Okay so we do the equation normally. What is 99+88?

Answer 3

187

Answer 4

Okay now to check your work through castin out 9's you cross out all the nines in the top addend of 99.

Answer 5

And after that add up 8and 8 from the addend of 88.

Answer 6

It should equal 16, so now add 1 and 6. To make 7

Answer 7

So now add the sum together. 1+8=9, so we cross that out and all that is left is 7.