Question

55 x 55 what is the answerhow you can take it easily tell me ​

Answer 1

$55 \times 55 \\ = (50 + 5)(50 + 5) \\ = (50 + 5)^{2} \\ = 2500 + 500 + 25 \\ = 3025$

Hope it helps you.. thanks

Answer 2

hey mate

here is the answer

Answer:

Trick to find the square of a 2-digit number with its unit digit as 5.

for example:-

25*25=?

35*35=?

55*55=?

in all these cases we have to find the square of 2-digit number that ends with 5.

steps:-

1)- Add 1 to the tenth digit and multiply it with the next number [successor]

2)-the last two digits will always be 25.

3)-concate [write them as single number] them.

solution:

1)- 55*55=>

[5+1]*5 25

6*5 25

30 25

3025

so,55*55=3025

some more examples:-

65*65=

[1+6]*6 25

7*6 25

42 25

4225

so,65*65=4225

similarly,

75*75=>

[1+7]*7 25

8*7 25

56 25

5625

so, 75*75=5625

so,25*25=625

so,35*35=1225