### Home > MC1 > Chapter 4 > Lesson 4.1.4 > Problem4-44

4-44.

Simplify each expression. Then check your solutions with a scientific calculator.

1.  $4 + 2 · 5$

Refer to problem MC1 3-144 and problem MC1 3-150 if you need a reminder of how to simplify expressions.

Complete any multiplication or division.

$4 + 10$

$4 + 10 = 14$

$14$

1.  $\left(3 + 2\right) · \left( −2 −1\right)$

Follow the correct order of operations while simplifying this expression.

$−15$

1.  $− 4 + 2 · 5$

This problem is very similar to part (a). Follow those same steps while simplifying this expression.

1.  $4\left( −3\right) − \left( −5\right) + 6\left(1 − 2\right)$

This problem is similar to the previous three. Be sure to simplify inside the parentheses first before adding the terms.