To solve this expression, we'll follow the order of operations (PEMDAS).
First, we'll calculate 7 x 1, which equals 7.
Next, we'll calculate 5 x 1/10, which equals 0.5.
After that, we'll calculate 3 1/100, which can be rewritten as 3 + 1/100. Adding 3 and 1/100 gives us 3.01.
Finally, we'll calculate 1 x 1/1000, which equals 1/1000.
Now, we'll add up all the results:
7 + 0.5 + 3.01 + 1/1000
The sum of these expressions is 10.51 + 1/1000.
7 x 1 + 5 x 1/10 + 3 1/100 + 1 x 1/1000
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