Multiplying Integers
-7xx2 = ?
-14
63 ÷ 7 = ?
9
Mrs. Rush withdraws from her bank account $20 every time she fills up with gas. If she withdraws money 3 times in a month, how much money total does she withdraw in a month?
$-20 x 3 = $-60 in one month
Manny owes the store $35 for candy he purchased. Each of his 5 friends will help pay off his debt. How much of the debt will each person have to pay?
-35 ÷ 5 = $-7
Positive x positive = ?
Positive
-10xx-5=?
50
-120 ÷ 10 =
-12
Eliana burns 8 calories per minute when she exercises. How many calories will she burn if she works out for 30 minutes.
-8 x 30 = -240 calories
Ms. Hill borrowed a total of $81 from a friend. If she has 9 weeks to pay it off, how much money does she need to pay each week?
-81 ÷ 9 = $-9 a week
Negative x positive = ?
Negative
9xx3=?
27
-81 ÷ -9 = ?
9
The temperature drops 2 degrees Fahrenheit each hour. What is the total temperature change after 12 hours?
-2 x 12 = -24 degrees
A company lost $10,500 over the course of 5 months. How much money did they lose in one month?
-10,500 ÷ 5 = $-2,100 in one month
Positive x negative = ?
Negative
8xx-4=?
-32
64 ÷ -8 = ?
-8
Julie owes her friends $5 each. If she has 6 friends she owes money to, how much money does she owe altogether?
-$5 x 6 = $-30
-156 ÷ 20 = -7.8 degrees
Negative x negative = ?
Positive
-9xx-8=?
72
-36 ÷ 9 = ?
-4
Mrs. James lost 3 pounds every week for a year. How much weight did she lose over the entire year?
-3 x 52 = -156 pounds
A sprinkler was buried 8 feet below sea level. If Mr. James can dig down 2 feet at a time, how many digs will he need to make in order to each the sprinkler?
8 ÷ 2 = 4 feet
What does the term additive inverse mean?
When a number and its opposite are added, the sum equals zero.