1.

Find the square of 65.1. 43252. 42253. 42754. 44255. 4125

Answer» Correct Answer - Option 2 : 4225

Concept used:

Calculation skills trick.

Calculation:

Following steps need to be followed:

  •  Write the square of 5 i.e. 25 at the extreme right end.
  •   Multiply the digit at tens place to it next term. i.e. (6 x 7) = 42
  •   Now write the result to the left side of the result obtained in step (1) i.e. 4225 65² = 4225


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