### Home > MC2 > Chapter 4 > Lesson 4.1.2 > Problem4-22

4-22.

Copy and simplify each expression.

1. $7 + (-3)$

When you add a negative number, you are essentially subtracting it.

1. $(10)(-5)$

A positive number multiplied by a negative number is always a negative number.

$-50$

1. $-5 + 6$

See (a).

1. $(-2) ÷ (-2)$

When you divide a number by itself, the quotient is $1$.

$1$