Question

1*20-20*1...............

Answer 1

Answer:

hi mate

here is your answer...

1*20-20*1

20-20

0

hence, it is equal to 0

Answer 2

Step-by-step explanation:

20* 1 equals to 20

1* 20 equals to 20

if subract the two answers then 0 remains

so the answer is 0