# EXPS 1 | Lesson 3 | Practice

1. In the expression, $$a\times10^n,~a$$ must be a value between        and       .
2. Convert $$3,680,000$$ to scientific notation.
3. Convert $$0.000000567$$ to scientific notation.
4. Convert $$5.68\times10^{-5}$$ to standard form.
5. Convert $$3.62\times10^9$$ to standard form.

Simplify the following expressions and express the solution in scientific notation.

1. $$(3.68\times10^5)(5.72\times10^{-3})$$
2. $$\dfrac{1.368\times10^{10}}{5.7\times10^5}$$
3. According to University Today, the sun has an approximate volume of $$1.41\times10^{18}$$ km$$^3$$ and the earth has an approximate volume of $$1.083\times10^{12}$$ km$$^3$$.  Approximately how many earths can fit in the sun?