SAT Math Practice Question #3916 - SATify | SATify

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SAT Math Practice Question #3916 - SATify | SATify

#3916

arithmetic

number theory

easy

60 sec

What is the unit's digit of: $7 + 77 + 777 + 7, 777 + 77, 777$ ?

A.

0

B.

2

C.

5

D.

7