Adding and Subtracting integers
Triple it Up!!
What is the problem type and process?
-20-3=
Subtracting integers
Keep change change
It becomes -20+(-3)=
This is now adding integers with same signs.
Explain what absolute value means?
It means giving the distance from zero of a certain number.
What is the distance between -7.5 and 5.5?
The distance is 13.
(-9) x (-3 + 7)=
The answer is -36
The keyword below sea level is:
negative
What is the problem type and sign?
12+(-3)=
Adding integers with opposite signs.
Answer will be positive.
What is the relationship between zero and negative?
Zero will always be greater than any negative integer.
1.5 x -2 =
-3.0
l -4 + 7 l - 15 =
The answer is -12
The keyword deposit is:
Positive
What is the answer type and process?
-12+(-16)=
Adding integers with the same signs.
Add the numbers and then put the sign that both numbers had.
What is the relationship between zero and positive?
Any positive number will be greater than zero.
-4.5 / 9 =
-0.5
( 3 -4) / -1
1
Danielle was on the ground floor, she went up 10 floors, then down 6 floors. Which floor is she on now?
She is on the 4th floor.
What is the problem type and sign?
3-25=
Subtracting integers.
Changing to 3 +(-25)
Answer will be negative.
How do you know the answer sign,when you are multiplying or dividing integers?
If you have a even amount of negatives your answer is positive. And if you have a odd amount of negatives your answer will be negative.
Daily Double
What is the rule when you have a decimal in your divisor?
125 / -2.5=
You have to move the decimal out of the divisor first, before you can divide.
-50
(-2 x 4 ) / -2 =
4
Daily Double
Give the sign type of each keyword
1. Above Sea Level
2. Descend
3. North
1. Positive
2. Negative
3. Positive
What is the problem type,process,and sign?
24+12=
Adding integers with the same signs.
Add your integers
Answer will be positive.
Order the rational numbers from least to greatest.
7.5, 0, -13, 1.3, -8.5, 10
-13, -8.5, 0, 1.3, 7.5, 10
Daily Double!!!
A city has an altitude of 143.2 meters below sea level.A weather balloon was launched from this city and ascended vertically 300 meters,and the descended vertically 500.5 meters.
Show the expression and give the answer.
-143.2+300-500.5
-343.7 is the answer.
-8 + 7 -15 + 20 =
4
How does temperature relate to integers on a number line?
The colder it is, the further left on the number line.
The warmer it is, the further right on the number line.