Answer: 2,674
Step-by-step explanation: Add all of the numbers. An easier way to do it is just to take the first number of each addend and piece them all together.
Extra Example: 400 + 20 + 7
400: Take the 4.
4
20: take the 2.
42
7: Take the 7.
427
Therefore, 400 + 20 + 7 in standard form is 427
