Vocabulary
What does "sign" refer to?
A minus (negative) or a plus/no sign (positive)
How we notate positives and negatives.
Draw a number line and plot the points -3, -1, 4, 7, and 12 on your number line.
--I--I--I--I--I--I--I--I--I--I--I--I--I--I--I--I--I--I--
_ _ -3 _ -1 0 _ _ _ 4 _ _ 7 _ _ _ _ 12
True or false? -2 <-10
False, -2 > -10
What is the name of Gonzaga's Men's Basketball coach?
Mark Few
An equation has an equals sign and an answer, while an expression doesn't.
Decide whether these are true or false:
1. -2 < 4
2. -2 < -7
3. 4 > -10
4. -10 > 7
1. True
2. False
3. True
4. False
Put these in order: -2, 4, 3, 0
-2, 0, 3, 4
Write two equivalent ratios for 3:5
Possible answers:
6:10, 9:15, 1.5:2.5, 1:5/3
What am I asking you to do if I say, "Evaluate the expression"?
Solve it, plug in the value and find the numerical value, etc.
State whether these are true or false, and explain your reasoning.
1. 5/4 > -3/2
2. 5/4 is farther from 0 than -3/2
1. True. 5/4 is positive, and -3/2 is negative.
2. False, 5/4 is 1.25 units away from 0, and -3/2 is 1.5 units away from 0.
Shirley said, “I know that 14 is less than 21, so -14 is also less than -21. This means that it was colder in Minneapolis than in Anchorage.”
Do you agree? Explain your reasoning.
No, the realm of negative numbers is a reflection of the positives, so the opposite is true. -14 is closer to the positive numbers, so it is bigger.
(-14 > -21)
If a rectangle has a BASE of 3 and an AREA of 12, what is the HEIGHT?
12 / 3=4
What is the order of operations?
The order that you solve an equation or simplify an expression.
PEMDAS for Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.
GEMS for Groupings, Exponents, Multiplication/division, Subtraction/Addition
Write an accurate inequality using the following information about US cities and their elevations:
Death Valley, CA: -282ft
Tallahassee, FL: 203ft
Westmorland, CA: -157ft
Bethell, IN: 1,211ft
Denver CO: 5,280ft
Possible answers
-282 < 203
-157 > -282
5280 > 1211
-8.7 < -8.4 is a true statement. Select all that are true below.
-8.7 is further to the right on the number line than -8.4.
-8.7 is further to the left on the number line than -8.4.
-8.7 is less than -8.4.
-8.7 is greater than -8.4.
-8.4 is less than -8.7.
-8.4 is greater than -8.7
2, 3, 6
Name the 4 teams in the final four LAST year (2025). 100 points for each team named
Florida, Auburn, Duke, Houston
What is an inequality?
It compares two unequal expressions.
It compares two expressions using the signs "<" and ">"
Name 3 solutions to this inequality:
3x > 27
x = 10, 11, 12
Lincoln was seeing what the temperature was on Wednesday. At 1pm, the temperature was 14o C. Then, at 4:30 pm, he saw that the temperature dropped by 8oC. Describe what happened in terms of positive and negative numbers, and tell me what temperature it was at 4:30 pm.
The change in temperature was -8oC, which means that the temperature lowered by 8 degrees.
14o + (-8o) = 6o
14o - 8o = 6o
Write 52% as a fraction AND a decimal
52/100 and 0.52
26/50 and 0.52
13/25 and 0.52