Oblicz w przybliżeniu.
a) 112,716251413+87,16524172531 = 113+87= ______
b) 0,91625141926+1,0123415242735 =___________
c) 8,16251428 * 4,7816245131 = ________________
d) 2,61241326 * 3,876251487 = ________________