Final answer:
To multiply 728 by 4, break it down into place values (700, 20, 8) and multiply each by 4. Summing up the resulting products (2800, 80, 32) gives the answer, which is 2912.
Step-by-step explanation:
The question requires us to multiply 728 by 4 and then express the product in a summed format, by breaking down 728 into its hundreds, tens, and ones place values and multiplying each by 4.
To do this, we note that 728 equals 700 plus 20 plus 8. Multiplying each component by 4 gives us:
- 700 × 4 = 2800
- 20 × 4 = 80
- 8 × 4 = 32
Add all these products together and you get:
2800 + 80 + 32 = 2912
Therefore, 728 × 4 equals 2912, and this can be expressed as:
728 × 4 = (700 × 4) + (20 × 4) + (8 × 4) = 2800 + 80 + 32 = 2912.