(A) +/-
Will the sum be positive or negative
-5+(-2)
Negative
( -1) - ( -5) =
( -1) - ( -5) = 4
What is the sign of each product? Choose positive or negative.
-4 x -15
-2 x 2
positive
negative
Ms.Tye is goes scuba diving in Sanya. She completes 5 dives with a total depth of 25m. Write an equation using integers to represent the average depth of Ms.Tye's dives ?
-25 ÷ 5 = -5
5m
What is the opposite of -18?
18
( -7) + ( -3) =
( -7) + ( -3) = -10
-3-6=
-9
Amy simplified the expression -3 x (5-3) and found -3 x 2 = 6 is Amy correct? Why or why not ?
Alex says 80 ÷ (-8) = 10 . Is he correct? Explain
No, when a positive integer is divided by a negative integer , the quotient is negative.
+ ÷ - = -
The absolute value of opposites is _____ ?
The same
(+1) + ( -6) =
(+1) + ( -6) = -5
If Ms.Tye borrows $14.00 from Mrs.Sawyer and then borrows $3.00 more. Write an equation using negative integers to represent Ms.Tye's debt. How much does Ms.Tye owe Mrs.Sawyer?
-14 + (-3) = -17 ; $17
Ms.Tye pays 4mb for every chocolate she buys at the USA store. If she buys 4 chocolates from the USA store how much money will be deducted from her WeChat?
4 x -4 = -16
Why is -x/y equivalent to x/-y ? Explain
Both expressions are equivalent to -1(x/y)
Which of these situations can be represented by the opposite of -17 ?
Ms.Tye loses 17rmb
Ms.Tye gains 17 rmb
Ms.Tye descends 17m while diving
Ms.Tye gains 17 rmb
Ms.Tye plays a matching game . In order to advance to the next level ,she must score at least 10 points. She scores 17 points for correct matches and -6 points for incorrect matches. Did Ms.Tye make it to the next level?
Yes , Ms.Tye has scored 11 points
17+(-6)=11
How would you subtract a negative fraction from a positive decimal?
Convert both numbers into fraction or decimal form , and then add the opposite of the negative number.
An airplane descends at a rate of 2,700 ft per minute once the airplane starts it descent, what will its change in elevation after 3 1/2 minutes ?
-9,450 ft
Ms.Tye feels guilty about buying all of the Reese's at the USA store on Monday. She bought 21 Reese's in total.There are 3 teachers including herself on the math team. To divide the Reese's evenly amongst the math a team how many Reese's does each teacher get? How many Reese's does Ms.Tye lose by giving them away?
7 for each teacher
-14 Reese's for Ms.Tye
21 ÷ 3 = 7
2 X -7 = -14
Ms.Tye goes on a cave tour with Ms.Penny. They climb down to 10 meters below ground level. Then they climb the opposite of -10 meters to return to ground level. What is the total number of meters they climbed (in either direction) ?
20m
|10| +|-10| = 20
When you add a positive number and a negative number ,how can you tell whether the sum will be positive or negative?
The sum will have the sign of the addend with the greater absolute value.
Or something similar in your own words.
Ms.Tye is tired after walking up Mt.Nanshan. On her way down she rest after descending 10m. After resting for 10 min she descended another 20m. Then she realized she was hungry and wanted to order Mietuan and realized she lost her phone. She started to walk back up the mountain and found her phone after ascending 15m? How far many meters has Ms.Tye descended in total?
-10 + (-20) + 15 = -15
Ms.Tye is grading test and she deducts -5 points for each students who does not write their full name , date and advisory on their paper. She has 6 students that have not written their full name , date and advisory on their papers. How many points will Ms.Tye deduct in total?
-5 x 6 = -30
:)
Ms.Tye's yellow submarine descends at a rate of 2.5 Km per hour. If the ocean floor is 30 km , how long will it take for Ms.Tye's yellow submarine to reach the ocean floor?
30 ÷ 2.5 = 12
12 Hours
Meg says the opposite of 7 is -7 and the absolute value of 7 is -7. Is she correct ? Explain
No, Opposites combine to make zero and the absolute value is the distance from zero. The absolute value of 7 is 7.