The subtraction below is in base seven. Find the missing number.
5 1 6 2seven
-2 6 4 4seven
--------
2 * 1 5
--------

A.

2

B.

3

C.

4

D.

5

View answer & explanation

Correct answer is A

5 1 6 2seven
-2 6 4 4seven
--------
2 2 1 5
--------

the missing number is 2

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