235*237

To calculate \( 235 \times 237 \), you can use the difference of squares method:

\[ a = 236 \quad (the average of 235 and 237) \] \[ d = 1 \quad (the difference from the average) \] Then:

\[ 235 \times 237 = (236 - 1)(236 + 1) = 236^2 - 1^2 \]

Now, calculate \( 236^2 \):

\[ 236^2 = 55696 \]

So,

\[ 235 \times 237 = 55696 - 1 = 55695 \]

Thus, \( 235 \times 237 = 55695 \).