Which is bigger? need the answer fast! please?

Question

1. 63 cm or 6 m?

2. 5 g or 508 mg?

3. 1500 mL or 1.5 L?

4. 536 cm or 53.6 dm?

5. 43 mg or 5 g?

Answer 1

6 meters is bigger than 63 centimeters.

5 grams is larger than 508 milligrams.

In #3 they are the same.

In #4 they are the same.

5grams is bigger than 43 milligrams

How I got this:

1.100cm. are in a meter. So since 63cm is less than 1000cm. it's obvious which is the answer.

2.1000milligrams= 1 gram

Since 508 is less than 1000 you know that 5grams are more.

3.1000mL are in a L. 1000ml=1L+500mL=1500mL. 500mL=.5L   Put it together and get 1.5 =1500.

4. 0.1 decimeter=1 centimeter. You know for a fact that 53.6 x0.1=536.

5.Same concept as #2.    1000mg= 1g

And since 43mg is less then 1000mg. You know that answer.