Transcript (a - and a - = + ) If you love to hate, you HATE

OBJECTIVE
Apply the rules of
multiplying and
dividing integers to
solve real world
problems.
Evaluate the expression when
x= -9, y= -7 and z= -4
1. xy
2. y2
3. 2xyz
2
4. x + y
5. 3xy -yz
Simplify.
1. 12 (2)
2. 15 (30)
3. 80 ÷20
4. 735 ÷ 5
5. (5) (2) (4)
LOVE or HATE?
• If you love to love, you______
• If you hate to hate, you ______
• If you love to hate, you ______
• If you hate to love, you _______
• If you love to love, you LOVE
(a + and a + = + )
• If you hate to hate, you LOVE
(a - and a - = + )
• If you love to hate, you HATE
(a + and a - = - )
• If you hate to love, you HATE
(a - and a + = - )
• positive x positive =
positive
• negative x negative =
positive
• positive x negative =
negative
• negative x positive =
negative
• positive ÷ positive =
positive
• negative ÷ negative =
positive
• positive ÷ negative =
negative
• negative ÷ positive =
negative
X and ÷ INTEGERS
Rule 1 LIKE SIGNS= POSITIVE
++
9(6)= 54 90/5= 18
--8(-5)= 40 -88/-11= 8
Rule 2 Unlike Signs = Negative
+4(-6) = -24 -70÷ 5= -14
-+ -7(8) = -56
25 ÷ -5= -5
Simplify.
1. 12 (-2)
2. -15 (-30)
3. -80 ÷20
4. -735 ÷ -5
5. (-5) (-2) (-4)
Dante’ deposits $90 into
his school lunch account at
the beginning of the month
of October. If the school
charges him $4 for each
day he eats lunch. Is his
money enough for him to
eat in three weeks? Why?
On five plays, the
Ravens completed
passes for 14, -2, -8,
-4, and 8 yards.
What was the
average number of
yards per pass?
1. What is the
product of
-25, +12 and-3?
2. A scuba diver
is swimming at a depth of
-20 feet. Then she dives
down to a coral reef that
is at five times this depth.
What is the depth of the
coral reef?
3.Find the
quotient of
(-846) and (-3).
4. Jamaican track star
Usian Bolt burns 12
calories per minute when
he runs for 11 minutes.
What is the amount of
calories he burns?
5. The head lifeguard at
The Patterson Park Pool is
filling the pool. The water
level of the pool increases
at a rate of 4 inches per
minute for 15 minutes.
What integer represents
the total change in the
water level?
6. Darius wants to find
out the average of -89,
100, 45, -21 and-75.
What are How will he do
it? What will be the
average?
7. What will be the sign of
the quotient? Why?
(-1) ÷ (-1) ÷ (-1) ÷ (-1)