The subtraction below is in base seven. Find the missing number.
5 1 6 2seven
-2 6 4 4seven
——–
2 * 1 5
——–
5 1 6 2seven
-2 6 4 4seven
——–
2 * 1 5
——–
-
A.
2 -
B.
3 -
C.
4 -
D.
5
Correct Answer: Option A
Explanation
5 1 6 2seven
-2 6 4 4seven
——–
2 2 1 5
——–
the missing number is 2