7th grade math

integers

100

what is -16 - (-20)

4

200

if -27 - (-9)= -18 what is -9 - (-27) 

18

300

what happens when you divide a negative and a negative

 you get a negative 

400

what is -90 x 20

-1800

500

why do you get a positive number when you multiply -20 - (-36) but you get a negative number when you swap the numbers?

when you subtract -36 you're pushing -20 forward in the number line enough to surpass 0