Of the following numbers in scientific notation, which is the least: 6.5×10^3, 4.5×10^3, 1.95×10^3, 6.2×10^3
To compare numbers in scientific notation, we compare the coefficients (the numbers in front of the 10) first.
The coefficient of 4.5×10^3 is 4.5.
The coefficient of 1.95×10^3 is 1.95.
The coefficient of 6.2×10^3 is 6.2.
The coefficient of 6.5×10^3 is 6.5.
Comparing the coefficients, the least number is 1.95×10^3.