Question Number 105438 by Anindita last updated on 28/Jul/20
$$\mathrm{99}×\mathrm{99}=\mathrm{9801} \\ $$$$\mathrm{999}×\mathrm{999}=\mathrm{998001} \\ $$$$\mathrm{9999}×\mathrm{9999}=\mathrm{99980001} \\ $$$$\mathrm{99999}×\mathrm{99999}=? \\ $$$$\mathrm{999999}×\mathrm{999999}=? \\ $$
Commented by Rasheed.Sindhi last updated on 28/Jul/20
$$\mathrm{99}×\mathrm{99}=\mathrm{9801} \\ $$$$\mathrm{999}×\mathrm{999}=\mathrm{998001} \\ $$$$\mathrm{9999}×\mathrm{9999}=\mathrm{99980001} \\ $$$$\mathrm{99999}×\mathrm{99999}=\mathrm{9999800001} \\ $$$$\mathrm{999999}×\mathrm{999999}=\mathrm{999998000001} \\ $$
Commented by malwaan last updated on 29/Jul/20
$$\mathrm{11}×\mathrm{11}=\mathrm{121} \\ $$$$\mathrm{111}×\mathrm{111}=\mathrm{12321} \\ $$$$\mathrm{1111}×\mathrm{1111}=\mathrm{1234321} \\ $$$$\mathrm{11111}×\mathrm{11111}=? \\ $$
Commented by Anindita last updated on 29/Jul/20
$$\mathrm{11}×\mathrm{11}=\mathrm{121} \\ $$$$\mathrm{111}×\mathrm{111}=\mathrm{12321} \\ $$$$\mathrm{1111}×\mathrm{1111}=\mathrm{1234321} \\ $$$$\mathrm{11111}×\mathrm{11111}=\mathrm{123454321} \\ $$