Question

2. Find the ones digit of the cubes of each of the following.
I. 1893​

Answer 1

Answer:

1893³=(1890+3)³

apply expansion

all the digit except last term (which will be 3³) have 0 at unit place

therefore ones digit of 3³ is gonna be ones digit of 1893³=7

Answer 2

Answer:

1893 cube is 6783468957

and 7 is the ones digit