Number Sense

How does $$20\cdot\frac{1}{5}$$ compared to 80?

How does $$20\div\frac{1}{5}$$ compared to 80?

How does $$20$$ compared to $$80\left(\frac{1}{5}\right)$$ ?

How does $$20.42$$ compared to $$20.2$$ ?

How does $$20\left(\frac{1}{4}\right)$$ compared to $$20\left(\frac{2}{5}\right)$$ ?

How does $$20\div\left(\frac{1}{4}\right)$$ compared to $$20\div\left(\frac{2}{5}\right)$$ ?

How does $$10\cdot\left(\frac{1}{4}\right)$$ compared to $$5\cdot\left(\frac{1}{8}\right)$$ ?

How does $$20\div\left(\frac{2}{5}\right)$$ compared to $$10\div\left(\frac{1}{5}\right)$$ ?

How does $$14.64$$ compared to $$14.46$$ ?

How does $$\pi$$ compared to $$3.14$$ ?