Question

,
$121 - 100 = 11 \times 11 - 10 \times 10 = 2 \times 10 + 1 = 21$
​

Answer 1

Answer:

121-100

=21-------------(i)

11×11-10×10

121-100

=21-------------(ii)

2×10+1

=21-------------(iii)

(i)=(ii)=(iii)

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