Question

What would be the square of 1111?

(a) 1234321

(b) 12321

(c) 121

(d) 1

I got this question in homework.

I'm obligated to ask this question of Patterns in Squares in chapter Squares and Square Roots of Mathematics – Class 8

Answer 1

Right option is (a) 1234321

To explain I would say: The squares of all the numbers with only 1 as its digit in all its places have a special pattern.

If we need to find the square of number 11, we can write 121. Similarly, square of number 111 is 12321. Therefore, we have the answer without calculating this huge number.