Vocabulary
What is absolute value?
The distance a number is away from zero.
Bonus 10 pts: It is ALWAYS POSITIVE
What is the |–6|
6
Multiply the integers
(-3)·(2)
Find the quotient.
42/-6
-6, -7
Solve
(-3)·(2) + 7
1
Find the Greatest Common Factor (GCF) of: 21 and 28
The GCF is 7
When I woke up this morning the temperature was 2 degrees below zero. The temperature rose 18 degrees. Then it dropped 7. What temperature is it now?
9 degrees
What is an integer?
Positive and negative whole numbers.
OR
Numbers and thier opposites.
Write the correct inequality (<,>,=) for this statement:
3/4 2/9
>
Tarik uses his debit card to buy $15 worth of tokens for the arcade. Later he withdraws $20 from his checking account. Which integer represents the total change, in dollars, in his account balance?
-35
Solve
-48 ÷ 6 + (-32)
-40
Find the Least Common Multiple (LCM) of: 25 and 75
The LCM is 75
Douglas the boxer went to Doggy Daycare 4 times this week. I spent $21 each time. Represent how much I spent each day with an integer.
-84 dollars
Organize the numbers into four groups: natural numbers, whole numbers, integers, and rational numbers.
Select the number that only belongs in the rational numbers group and does not fit in any of the other groups.
6, 0, 0.47, -2
0.47
Write the correct integer for these statements:
• Fined 15 dollars
• 20 feet under water
• You got 6 bonus points on a test
• -15
• -20
• 6
The temperature in Denver was 8°C on Monday. By Tuesday morning, the temperature had dropped to –5°C.
What was the change in temperature from Monday to Tuesday?
8 – (–5) = 13
The temperature dropped by 13°C overall.
Solve
-12 - (-5) + 4 + (-18)
-21
Multiply the following fractions:
3 * 5 2/9
15 2/3
Antonio went to the mall to go holiday shopping. His grandma gave him $40 to spend. He spent 11 dollars on an action figure for his sister and another 7 on a necklace for his mom. He then found 15 dollars in his jeans. Excited, he bought a pretzel for himself and his brother that cost him 13 dollars. How much did Antonio have at the end of the day?
$24
What strategy would you use to multiply and divide integers?
Tic- Tac- Toe
OR
Same Sign = Positive
Different Sign = Negative
Order these from least to greatest:
|4|, 7, |−2|, −|9|, −|−6|
−|9|, −|−6|, |−2|, |4|, 7
A bungee jumper falls 200 ft in 4 seconds.
What integer represents the jumper's change in height in feet per second?
-50
Which expressions have a value
of 15? Select all that apply.
A) −11 + (−6) + 32
B) 23 − (7 − 15)
C) − (15 − 4) − 26
D) 28 + (−11) + 2
E) −6 − (9 − 30)
A) −11 + (−6) + 32
E) −6 − (9 − 30)
There are 30 apples, 42 pears, and 54 oranges for fruit baskets. If the fruit need to be divided equally into separate baskets with the same number of each type of fruit in each basket, how many different fruit baskets will there be?
6 fruit baskets
Coach Miller played frisbee golf. He kept track of his score per round. What was his total score after 5 rounds?
• First Round: 7
• Second Round: -9
• Third Round: -3
• Fourth Round: 14
• Fifth Round: -8
1
What strategy do you use to subtract integers?
KCC
BONUS 25 pts: Keep the 1st Number, Change - to +, Inverse (Opposite of 2nd Number)
Sarah lives in a city where the temperature can vary significantly throughout the day. One morning, the temperature is recorded as -5 degrees Celsius. By the afternoon, the temperature rises to 10 degrees Celsius.
How much has the temperature changed from morning to afternoon? Show how to use absolute value to represent the situation.
15 degrees
A construction worker digs with an excavator 9 feet into a building foundation each day for 5 consecutive days. What is the total change in depth from where the digging started?
-45 ft
Jordan had $14 in her wallet. She spent $7 on lunch, then gave $12 to her friend to help pay for a concert ticket. Later, she lost $2 somewhere along the way.
How much money does Jordan have left now?
14 + (–7) – 12 + (–2)
= –7
A truck weighs 8,500 pounds. A car is
7/10 as heavy as the truck. How much does the truck weigh?
5,950 pounds
Which two expressions are equivalent to
-3/5
3/5, 3/-5, 5/-3, -(-5/3), -(3/-5), -(-3/-5)
3/-5, -(-3/-5)