400 х 600= 120 х 80= 400 х 106 +600 х 106

Question

400 х 600=
120 х 80=
400 х 106 +600 х 106

Answer 1

400 * 600 = 240000
120 * 80 = 9600
400 * 106 + 600 * 106 = 42400 + 63600 = 106000

Answer 2

400x600=240000
120x80=9600
400x106+600x106=106000
400x106=42400
600x106=63600
42400+63600=106000