1.3 & 2.3 Adding & Subtracting Rational Numbers Review

Simplify: 12 - 20

(a)  

Subtract:

4 - (-12)

(a)  

Simplify:

-7 - (-2)

(a)  

Simplify:

15 - (-20)

(a)  

If both the integers are negative, then their sum is ________.

• Positive

• Negative

• Zero

Add: 14 + (-17)

(a)  

The temperature in Detroit was -12 degrees Fahrenheit one day, the temperature was 20 degrees higher in Sparta.  The temperature in Sparta that day was (a)   degrees Fahrenheit.

A submarine was situated 400 feet below sea level. If it ascends 275 feet, what is the new position relative to the sea level?

(a)  

 $-\frac{6}{7}+\frac{4}{7}$  

•  $-\frac{10}{7}$  

•  $\frac{2}{7}$  

•  $-\frac{2}{7}$  

•  $\frac{10}{7}$  

 $3\frac{2}{3}-1\ \frac{1}{6}$  

•  $2\frac{1}{6}$  

•  $4\frac{1}{2}$  

•  $2\frac{1}{2}$  

•  $4\frac{5}{6}$