we know that
12,430,000 in expanded form is equal to
12,430,000 = 1 * (10,000,000) + 2 * (1,000,000) + 4 * (100,000) + 3 * (10,000)
12,430,000 = (10,000,000) + (2,000,000) + (400,000) + (30,000)
therefore
the answer is
(10,000,000) + (2,000,000) + (400,000) + (30,000)
