Question

what will be the unit digit of the square of the following number ?
a) 81
b) 1234
c) 26837
d) 8888
e) 2200​

Answer 1

QUESTION:- what will be the unit digit of the square of the following number ?

a) 81

b) 1234

c) 26837

d) 8888

e) 2200

ANSWER:- A) (81)² = 1 is the unit digit .

B) (1234)² = 4×4 = 16 = 6 is the unit digit.

C) (26837)² = 7×7=49 = 9 is the unit digit.

D) (8888)²= 8×8= 64 =4 is the unit digit.

E) (2200)² = 0 is the unit digit.

hope it helps

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