Respuesta :

Answer:

899 would be your answer

Step-by-step explanation:

10x5=50

50+30=80

80+20=100

100x10=1000

1000-100=900

900-1=899

Hope this helps you!

Moongem3000school
(10x5)+(30+20)x10-100-1

First solve everything in parenthesis.

50+50x10-100-1

Then, because of PEMDAS (Parenthesis, exponent, multiplication/division, addition/subtraction) you need to then do 50x10.

50+500-100-1

Then, because addition and subtraction can be switched around you do 50+500 first.

550-100-1

Then you do 550-100.

450-1

Then you subtract 450-1 and get your answer.

450-1=449

Hope this helps and have a nice day!!!