Adding Integers
(-8) + (-1)
-9
-1-5
-6
24/(-3)
8
(-3)(5)
-15
A rational number can be a fraction, decimal, whole number, positive, or negative.
-32 + (-38)
-70
8-11
-3
-13/(-1)
13
(-10)(-2)
20
Categorize the square root of 4.
Real, Rational, Whole, Natural
109+191
300
15-21
-6
0 / (-9)
0
7(-6)
-42
What is a undefined number?
A number divided by 0.
-150 + (-1500)
-1,650
0 - (-5)
5
If Jake loses -7 points for each wrong answer and loses a total of -56 points, how many questions did he answer incorrectly?
8
Explain what happens when you multiply two integers with opposite signs.
It equals a negative integer.
What is an imaginary number?
A square root of a negative number.
How do you add integers with the same sign? Describe the steps.
1. Find the absolute value of each integer.
2. Add.
3. Use the sign that both integers had from the original equation.
How do you subtract integers using the Keep/Change/Change rule? Provide an example.
1. Keep/Change/Change
2. Find the absolute values
3. Subtract bigger-smaller
4. Use the sign of the bigger number
Explain the rules for dividing integers.
negative/negative = positive
negative/positive = negative
positive/positive = positive
A mountain climber descends 50 feet at a time for 5 times. What is the overall change in elevation?
-250 feet
Classify the number -2.
Integer, Rational, Real.