Question

how to find the square of the following numbers ending with 5 without actual multiplication​

Answer 1

Answer:

Step One: Identify N: Here, the number before the . ...

Step Two: Calculate N(N+1): Now, we multiply N by N+1, i.e. we multiply 7 by 7+1: 7(7+1)=7(8)=56.

Step Three: Add .25 to the End: Now, we just tack on a .25 to the end of the 56 to get the answer: 7.52=56.25=56.25.

Answer 2

Answer:

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