december 1, 2014
TRANSCRIPT
December 1, 2014
Which got me thinking.....
Average Daily Temps.
1. On average, the warmest January day in New York rises to what temperature?2. In October, the degree change in temperature on any given
day is ≈ |what|?4. Write an inequality showing the range of temperatures in
New York throughout the year.3. On average, the smallest change in daily temperature occurs in what month(s)?
Average Daily Temps.
1. For nearly all months, the average daily temperature changes by ≈ how many degrees?2. The average low temperature changes by ≈ how many degrees between November and January? 3. Write an inequality showing the range of temperatures in
Tokyo throughout the year.
1. The warmest evenings occur in what month?2. The lowest high temperature is _____ and occurs in what month?3. In November, the daily temperature changes by ≈ how many degrees?4. Write an inequality showing the range of temperatures in
Punta Arenas throughout the year.
No ChartAvailable
75 7373 75
1. The greatest high temperature difference from any day in any month is |what|?2. Write an inequality showing the least and greatest daily range of temperature change throughout the year.
The most consistent temperature in the world
Saipan holds the Guinness World Record for most consistent temperature. The average difference between night and day is greater than the average difference between winter and summer. This is an extremely unusual global occurrence.
3. How does Saipan’s greatest temperature change differ from the other charts shown?
Number Properties
Properties
Properties are the rules of the numbers game.
Like any rules, they state what can and cannot be performed.
If these rules are changed, the way we solve problems would be totally different and make no sense.
Commutative Properties
Associative Properties
Associative Property
Associative Property
Identity Properties
Identity Properties
a + 0= a
7 + 0 =7
Identity Properties
1•a = a
8•1= 8
𝟐
𝟑• 1 =
𝟐
𝟑
Multiplicative Identity is…
1
One times a number is that number.
Multiplicative Identity
Inverse Properties
Inverse Properties
Additive Inverse - Opposite
Another number that added to the original number is equal to the additive identity, which is….
0
-3 + 3
5 + (-5)
Inverse Properties
Multiplicative Inverse: The Reciprocal
A number that when multiplied by the original number is equal to the Multiplicative Identity, which is 1
½ •2 = 1 3 •?? = 1
-1/4 •?? = 1
If xy = 1, then x = ?
Practice Problems
Original
Number
Additive
Inverse
Multiplicative
Inverse
Opposite &
Reciprocal
1/5
-1
-6/11
-1/5 5 - 5
1 -1 1
6/11 -11/6 11/6
(x – y) + ? = 0 - x + y
