Adding and Subtracting Rational Numbers

Solve and simplify. (keep improper)

 $-\frac{7}{2}+3\frac{2}{3}$  

(a)  

Your bank account balance is $32.00.  You make the following withdrawals, in the following order:  $15.00, $7.41, $35.79 and $0.53.  After each withdrawal that leaves a negative balance, the bank adds a -$32.00 bank fee to your account.  What is your new balance? 

(a)  

Solve and simplify.

 $\frac{3}{7}-\frac{10}{7}$ 

(a)  

Tell whether this sentence is always true, sometimes true, or never true.  (COME UP WITH EXAMPLES BEFORE YOU PICK)

negative - positive = negative

• always true
• sometimes true
• never true

¾ + -¼ = 

• -2/4
• -1/2
• 1/2
• -5/4

A football team gained 9 yards on one play and then lost 22 yards on the next. Write a sum of integers to find the overall change in field position.

• -9 + (-22) = -13
• 9 + (-22) = 13
• 9 + (-22) = -13
• none

Find the difference of 7/10 - 9/10

• 5
• -1/5
• -8/5
• 8/5

Make sure your final answer is in simplest form! (Hint: use subtraction method)

• -1
• -1/2
• -3/5

-⅔ - (-⅓) = 

• 1
• -1
• 1/3
• -1/3

Solve the problem.
-4 - 10

• -4
• 4
• 14
• -14