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# What is the missing number in the square 15 3 7 19 8 11 5 2 7 15 12 4 14 7 14 ?

Question #24844. Asked by key west. (Dec 05 02 2:38 AM)

Barrow boy

21. Because 14-7+14=21.

 Dec 05 02, 12:19 PM
sequoianoir

I assume the square you mean is:
15 3 7 19
8 11 5 2
7 15 12 4
14 7 14 ?

Then either going across
15 - 3 + 7 = 19
8 - 11 + 5 = 2
7 - 15 + 12 = 4
14 - 7 + 14 = 21

or going downwards
15 3 7 19
- - - -
8 11 5 2
+ + + +
7 15 12 4
= = = =
14 7 14 21

 Dec 05 02, 1:06 PM

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