What are some key words that would tell you to add? List as many as you can!
Increase, deposit, above, rise, up, gain earn, etc.
The overnight low temperature in Rochester was -17°F. The overnight low temperature in Buffalo was -6°F. How much warmer was Buffalo than Rochester?
-2(-2)(-3)
-12
If Aleyjah withdrawals $15 a day, how much will she have withdrawed in a month?
30 days: $450
31 days: $465
What are the only two types of decimals that are rational? Give an example of each.
What are some key words would tell you to multiply? List as many as you can!
Times, per, each, constant, rate, groups, doubled, tripled, etc.
On a cold February morning, Daymien checked the temperature on his phone and saw that it was –3°C. When he checked again after school, the temperature had dropped 3°C. What was the temperature after school?
-6
8+3(3-(-12))
The temperature in Buffalo at noon was 89 degrees. Each hour, the temperature dropped 2 degrees. What is the temperature after 6 hours?
77
Match each word up with its corresponding operation:
Product
Difference
Sum
Quotient
Product: X
Difference: -
Sum: +
Quotient: /
What is the difference between -1 x -1 and -1 + -1?
The product of two negatives is a positive!
The sum of two negatives is still a negative!
Why...?
A dolphin was swimming 7.7 meters below the surface of the ocean. It located a squid and dove down 4.8 more meters to eat it. What is the location of the dolphin now relative to the surface?
-12.5
24 ÷ (1/4) + 0.5 - (7/9)
95.722222... OR 95 13/16
Stephen wants to save money for a new bike. He already has $30 in his bank account, but plans on depositing $170 each week. How much will Stephen have after 6 weeks?
$1050
How do we know when a number under the square root sign is NOT rational?
It is NOT a perfect square.
1, 4, 9, 16, 25, 36, ...
Give an example of an expression that has both a minus and a negative sign.
-2 - (-4)
Caleb was swimming 8 feet below the surface of the river. He swam down 6 more feet to escape a large, hungry fish. Where is Caleb in relative to the surface?
-14 feet
(-0.75)(-0.25)(3/5)(1/3)
0.0375 OR 3/80
Cam runs at a constant rate of 0.1 miles per minute. If Cam ran for an hour, how far did he run?
6 miles
What is the difference between an additive inverse and an absolute value?
Additive Inverse: Think "opposite"
Absolute Valye: | | = Positive!