Question

Which of the following is equal to one million three hundred thousand?

A 1.3×106
B 1.3×109
C 1.03×106
D 1.03×109

Answer 1

1 million is 1*10^6

300 thousand is 3*10^5

Since 300,000 is one power of ten below 1 million, it's either A or B.

The correct choice is A, however, because of 1 million being 10^6. We choose the biggest value we get.

Hope this helped!