Question
Estimate Large and Small Quantities Practice
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Question
A total of 7,803,100 tourists visited Country A from the year 2018 to the year 2020. Round to the nearest place value, then express this number in the form of a single digit times an integer power of 10.(1 point)
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Answers
GPT-4o mini
To round the number 7,803,100 to the nearest place value, we can look at the hundred thousands place, which is the '8' in this case. The digit to the right (the ten thousands place, which is '0') is less than 5, so we do not round the '8' up.
Thus, rounding 7,803,100 to the nearest hundred thousand gives us 7,800,000.
Next, we need to express 7,800,000 in the form of a single digit times an integer power of 10.
We can write 7,800,000 as:
\[ 7.8 \times 10^6 \]
So, the final answer is:
**7.8 × 10^6**
Thus, rounding 7,803,100 to the nearest hundred thousand gives us 7,800,000.
Next, we need to express 7,800,000 in the form of a single digit times an integer power of 10.
We can write 7,800,000 as:
\[ 7.8 \times 10^6 \]
So, the final answer is:
**7.8 × 10^6**