Question
2.8 times 10^9 minus 1.8 times 10^9
Answers
GPT-4o mini
To subtract \(1.8 \times 10^9\) from \(2.8 \times 10^9\), you can first combine the coefficients (the numbers before the powers of ten) since they have the same power of ten:
\[
2.8 \times 10^9 - 1.8 \times 10^9 = (2.8 - 1.8) \times 10^9
\]
Calculating the coefficients:
\[
2.8 - 1.8 = 1.0
\]
So, the expression simplifies to:
\[
1.0 \times 10^9
\]
This can be written more simply as:
\[
10^9
\]
Thus, \(2.8 \times 10^9 - 1.8 \times 10^9 = 10^9\).
\[
2.8 \times 10^9 - 1.8 \times 10^9 = (2.8 - 1.8) \times 10^9
\]
Calculating the coefficients:
\[
2.8 - 1.8 = 1.0
\]
So, the expression simplifies to:
\[
1.0 \times 10^9
\]
This can be written more simply as:
\[
10^9
\]
Thus, \(2.8 \times 10^9 - 1.8 \times 10^9 = 10^9\).