Question

I need help, I'm stuck​

Answer 1

1: 12 * $10^{9}$

         We can easily tell this is the answer here as 12 is larger than 4. They are both being multiplied by the same power of 10, so we can ignore that part and still tell which is larger.

2: 3 * $10^{12}$

         Same here, we can easily tell this is the answer here as 3 is larger than 1.5. They are both being multiplied by the same power of 10, so we can ignore that part and still tell which is larger.

3: 6 * $10^{5}$

         This one is slightly more complicated than the other two, but still not to difficult when you know what you're doing.

          A tip: 10 to the fourth power ($10^{4}$) is 10,000. Aka, a 1 with four zeros!

For the first one, 20 has a zero, so we can take it and put it onto the 10th power. We know have:

2 * $10^{5}$ and 6 * $10^{5}$

         Using the same method as #1 and #2, we can tell that 6 * $10^{5}$  is the answer here!

I hope this helps, have a nice day :D