Final answer:
The student asked to convert a number in expanded form into standard form. The calculation involves adding the product of whole numbers and fractions with different place values. The standard form of the number is 80.029.
Step-by-step explanation:
The student's question revolves around the conversion of a mixed number with different place values into standard form. The given expression is (8 x 10) + (2 x 1/100) + (9 x 1/1,000). We will break down this expression step by step.
- First, we calculate (8 x 10), which is 80.
- Next, we calculate (2 x 1/100), which is 0.02, because 2/100 is the same as writing 0.02.
- Finally, we calculate (9 x 1/1,000), which is 0.009, since 9/1,000 is the same as writing 0.009.
To find the number in standard notation, we simply add these values together: 80 + 0.02 + 0.009, which equals 80.029.