1. Do Now 11/17/10 Take out HW from last night. Copy HW in your planner.
Punchline worksheet #40
Copy HW in your planner.
Text page 105, #24-34 evens, #38-44 evens
Quiz sections 2.6 & 2.7 Friday
In your journal, solve the following problems. Explain how the first problem is different from the rest.

2. Homework Punchline worksheet #40
A) -4
S) 5
E) -54
P) 100
T) 36
C) -7
I) -120
U) -150
O) -50
S) 240
H) -4.5
A) -84
S) 90
D) -200
Y) -17
F) -10
O) 64
B) -20
L) 180
R) 2.5 lb
S) 144
“Why Did the Outfielder Join the Orchestra?
So He Could Play First Bass!

3. Objective
SWBAT solve equations using decimals

4. Equation- mathematical sentence with an equal sign both sides
Like a scale,
both sides
must be balanced

5. Section 2.7 “Equations with Decimals”x
+ 7.2 = 10.5
Left side
Right side
‘x’ has to be 3.3 in order to make the equation balanced.
Like a scale, the left side and right side must be the same in order to be balanced!

6. Solving Addition Equations…
Isolate the variable! Get ‘m’ by itself.
m = -18.2
To get the ‘m’
by itself get rid of
“adding 4.7”
– 4.7
4.7
Do the opposite.
“Subtract 4.7”
m = -22.9
Whatever you do to
one side of the equation
you must do the other side.
-18.2 – 4.7
(-4.7) “opp-opp”
-22.9

7. Solving Subtraction Equations…
Isolate the variable! Get ‘y’ by itself.
-2.26 = y – 6.91
To get the ‘y’
by itself get rid of
“subtracting 6.91”
+6.91
+6.91
Do the opposite.
“Add 6.91”
4.65 = y
Whatever you do to
one side of the equation
you must do the other side.

8. Solving a Multiplication Equation
-0.6y = -5.1
“Undo” multiplication by dividing both sides of the equation
y = 8.5

9. Solving a Division Equation
-8· · -8
j =
“Undo” division by multiplying both sides of the equation
j = -14

10. Guided Practice Notetaking Guide page 35, Checkpoints #1-9 -8.7
2) 10.58
3) 16.52
4) -2.05
5) x = 3.8
6) y= -4.7
7) m = -1.9
8) x = -7.2
9) y = 26.04

11. Text page 105, #24-34 evens, #40-44 evens
WAR!!!
Using your boards solve the equations as fast as possible. If your number is called … you are at WAR!!
Homework
Text page 105, #24-34 evens, #40-44 evens