English: 10 x 1 - M x 0 is 10, 10- 10 will be 0, 10 x 1 is 10, - M x - 4 is 4M.
Telugu: 10 x 1 - M x 0 అంటే 10, 10- 10 అనేది 0 అవుతుంది, 10 x 1 అంటే 10, - M x - 4 అంటే 4M.