Neekabff Neekabff 19-01-2021 Mathematics contestada 1 Calculate:(a) 20 x 47 = 2 x 10 x 47 = 2 x 470 =(b) 30 x 56 = 3x 10 x 56 =(c) 50 x 39 =(d) 74 x 60 =
