Chapter 6.CR, Problem 10CR

To determine

a.

To explain:

Choosing the most appropriate estimate for $\frac{30\frac{3}{8}}{4\frac{1}{9}}\cdot \frac{8\frac{1}{3}}{3\frac{8}{9}}$ without actually performing.

To determine

b.

To explain:

Choosing the most appropriate estimate for $\left(\frac{3}{800}+\frac{4}{5000}+\frac{15}{6}\right)6$ without actually performing.

To determine

c.

To explain:

Choosing the most appropriate estimate for $\frac{1}{407}÷\frac{1}{1609}$ without actually performing.