1. CERTA #5

2. WARM-uP Review packet corrections Lessons 31 and 32 Exit card
Agenda
WARM-uP
Review packet corrections
Lessons 31 and 32
Exit card

3. Warm-up
Simplify. (-34) + 75 (-15) + (-19)

4. Lesson 31: adding integers Combining like terms
Recall: Where do you see integers?

5. Picture a number line when adding integers
Anja has no money and owes Kiel $46. If Anja earns $60 shoveling snow, then she can repay Kiel and have money left over. Write an equation for this situation and find how much money Anja has after she repays Kiel.

6. If the temperature this morning was -11 degrees but increases 16 degrees by 3 pm, what is the temperature at 3 pm?

7. Find each sum. (-15) + 22 b. (-42) + (-1) (57) + (-29) d. (-9) + (-11)
“Same sign, add and keep the sign”
“Different sign, subtract and keep the sign of the number further from zero”

8. Term: an algebraic expression including numerical coefficients and variables What are the numerical coefficients of 2y, 15, and - 𝑥 2 ?

9. Simplify by combining like terms
9xy + 7 – xy + (-13)

10. Lesson 32: Probability
Probability: the likelihood that a particular event will occur P(A) = 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑓𝑎𝑣𝑜𝑟𝑎𝑏𝑙𝑒 𝑜𝑢𝑡𝑐𝑜𝑚𝑒𝑠 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑝𝑜𝑠𝑠𝑖𝑏𝑙𝑒 𝑜𝑢𝑡𝑐𝑜𝑚𝑒𝑠

11. What is the probability the spinner will stop…
In sector 7?
In a blue sector?
In a yellow sector numbered less
than 4?

12. Odds
Odds: the ratio of the number of favorable to unfavorable outcomes What are the odds of landing on an odd numbered sector?

13. Sample Space: the collection of all possible outcomes If a coin is tossed twice, what is the sample space? What is the probability of getting tails exactly twice?

14. Theoretical vs. experimental probability
Theoretical: predicting a situation. “What is the probability of flipping a heads?” Experimental: assessing an experiment. “A coin was flipped 100 times and heads was flipped 58 times”

15. • Lessons 31 and 32
• P. 207: A – N All. P. 214: A – G All
• CP: P.215: #10
Due Friday