Homework
- tell parents about the Pfizer vaccines for teens from age 12 to 16. You will get your shots this summer
- when the country and world open up, what will you do? Think of at least 10 things you want to do, and provide explanation. This will be your writing on demand question on Friday
Warm up questions: Addition and subtraction only (0.5 points each)
19 – 8 + 46 – 37 – 13 9 – 51 + 25 – 33 – 6 + 12
Part A: Basic questions (0.5 point each)
(–21) ÷ 3 (–96) ÷ (–3)
(–12) × (–13) ÷ (–2) 16 × (–11) ÷ (–4)
Part B: Brackets and exponents (1 point each)
- exponents are outside the bracket
(35 + (–18))2 (–27 + (–13))2
- exponents stay with the negative integers (2 points each)
71 + (–6)2 + (–21) 99 + (–4)3 – (–8)2
French class from 9:45am to 10:30am. I will post the rest after break at 10:45am
After Break at 10:45am
Part C: Problem solving based questions with integers (2 points each)
a. An elevator starts from the twenty-fifth floor. It goes down eleven floors, the drifts up four floor and finally goes down ten floor. What floor is it at now?
b. On Monday, the noon time temperature was –12°C. On Tuesday, the temperature went down 7°C, on Wednesday, the temperature went down another 2°C. Then the weather started to warm up. On Thursday, it went up 5°C and finally, on Friday, it went up another 6°C, What temperature was it on Friday?
Part D: Balancing the cheque book (10 points)
Determine how much money is left in the bank account after a week. Show all steps and calculations
You have $353.88 in your bank account
Monday: receive wage from your boss, $421.45
Tuesday: pay rent, $546.68
Wednesday: pay cable bills, $74.29
Thursday: get part time work at Starbucks, $40.97
Friday: Buy TTC bus pass, $123.43
Saturday: Dinner with parents, $91.33
Sunday: buy a Lego, $43.91
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Date |
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Deposit |
Withdraw |
Balance |
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$353.88 |
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Monday |
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Tuesday |
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Wednesday |
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Thursday |
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Friday |
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Saturday |
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Sunday
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There should be a negative balance in the case above. List four ways to reduce your living expenses to avoid running into debt.
1)
2)
3)
4)
Part E: BEDMAS with negative integers (5 points each)
Hints: Follow this order, (first) bracket, exponents, division, multiplication, addition, subtraction (last)
(–3)3 + 30 ÷ (–6) + 12 + 22 – 13 + 15 + (–5)2 [ans: 11]
(–11) + 27 – 52 × 2 + 39 ÷ 3 – (–5) + 13 + (–2)3 [ans:–65]
Bonus (5 points)
Starbucks sold 100 drinks (coffee and tea only) on Sunday. The store took in $277.50.
If each coffee was $3.00 and each tea is $2.50, how many coffee and tea did the store sell?
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