### Home > CC1MN > Chapter 9 > Lesson 9.1.1 > Problem9-11

9-11.

For each of the following multiplication problems, first estimate the product. Then check your estimation by multiplying.

1. $\frac { 1 } { 2 } \cdot \frac { 6 } { 5 }$

$\frac{6}{5}\ \text{ is just more than } \\ 1,\text{ so half }$

$\text {of that should be}\\ \text{ just more than }\frac{1}{2}.$

1. $\frac { 4 } { 5 } \cdot \frac { 8 } { 9 }$

Will the product be more than one half?
Less than one half?
More than one?
Less than one?

1. $\frac { 3 } { 7 } \cdot \frac { 1 } { 2 }$

${\frac{3}{14}}$