Question

${100}^{2} - {99}^{2}$

Answer 1

hope it helps you my frnd ☺☺

Answer 2

Hey mate, here is your answer-: )

$(100) {}^{2} - (99) {}^{2} = 10000 - 9801$
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 199$

HOPE it helps to you!!!!