Use the clues provided to solve the number puzzle.
"Across" and "down" are not specified as each letter only corresponds to one answer.
No number begins with zero.
A calculator could come in handy!
A + 3F = 2013
BV = 2013
(D-K)� - T = 2013
G - C = 2013
G - 7N = 2013
H� - E = 2013
H + L - Y = 2013
I + (M-Q)� = 2013
J + 3O = 2013
6O - W = 2013
P + Q = 2013
R - A = 2013
S - X� = 2013
2U + Z = 2013