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Here are the equations that make 10 using 2, 3, 8, and 6.

2 3 8 6 ?

 

 
2 + 8 = 10
2 (8-3) = 10
(6/3) + 8 = 10
(3 x 6) - 8 = 10
(2 x 8) - 6 = 10
(2 to the 3rd power - 6) + 8 = 10
(3+2) x (8-6) = 10
(2 + 3) x ( 8 - 6) = 10
8+6 divided by 2+3=10
((6+3) x 2) - 8 = 10
2 [ (8-6) + 3)] = 10
3!/6 x (8 +2) = 10

[3! is the same as 3 x 2 x 1. This is called 3 factorial.]

 

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