1. Lesson 0­3 thru 0­8.notebook August 20, 2012
Assignment:
1­­>L0­4, pg. P16, #3­30 (every 3rd)
& L0­5, pg. P19, #3­36 (every 3rd­­skip 27
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(8/23)�
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30)
2­­L0­6, pg. P21­P22, #3­30 (every 3rd)
L0­7, pg. P25, #10­20 (evens)
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(8/24)�
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L0­8, pg. P28, #15­23 (all)
3­­Chapter 0 Test ­ Mon (pt. 1) Thurs (pt. 2)
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2. Lesson 0­3 thru 0­8.notebook August 20, 2012
Lesson 0.3­0.8 Warm­Up:
1) Julie answered 21 out of 25 questions correctly, what
percent did she answer correctly?
2) Compare: 7/20 2/5
3) What is the reciprocal of 4/11?
4) Convert 2 3/5 to an improper fraction.
5) Convert 37/4 to a mixed number.
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3. Lesson 0­3 thru 0­8.notebook August 20, 2012
Lessons 0­3 thru 0­8:
REMEMBER:
Rules for adding signed numbers:
signs same: ADD use the same sign
signs different: SUBTRACT use the sign of the larger
Rule for subtracting signed numbers:
ADD the OPPOSITE use the rules for adding
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4. Lesson 0­3 thru 0­8.notebook August 20, 2012
Examples:
Add or subtract:
A) 25 + (­16)
B) ­57 ­ 34
C) ­33.7 ­ (­24.2)
D) ­1/2 + 4/5
E) ­7/8 ­ (­3/16)
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5. Lesson 0­3 thru 0­8.notebook August 20, 2012
and...REMEMBER:
Rules for multiplying or dividing signed numbers:
signs same: MULTIPLY or DIVIDE solution is +
signs different: MULTIPLY or DIVIDE solution is ­
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6. Lesson 0­3 thru 0­8.notebook August 20, 2012
More Examples:
Multiply or divide:
F) ­78 (­1.3)
G) (­1/3)(­7 1/2)
H) 11/12 (­1 1/5)
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7. Lesson 0­3 thru 0­8.notebook August 20, 2012
To do a Percent Problem:
percent x of = is
...fill in the given pieces and isolate the missing piece!
**AND ­ the fraction bar means:
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8. Lesson 0­3 thru 0­8.notebook August 20, 2012
More Examples:
Express as a fraction or mixed number.
I) 0.4%
Find each number.
J) 16 is what percent of 40?
K) 1 is what percent of 400?
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9. Lesson 0­3 thru 0­8.notebook August 20, 2012
Look at page P24...parts of a circle...
Formulas:
*Circumference = pi x diameter pi = 3.14
Look at P26....more formulas...
*Area of a parallelogram = base x height
*Area of a triangle = base x height
base and height
2
must be
*Area of a circle = pi x radius 2 perpendicular!!
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10. Lesson 0­3 thru 0­8.notebook August 20, 2012
More Examples:
Find the perimeter.
L)
10 in
M)
5 in
10 in
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11. Lesson 0­3 thru 0­8.notebook August 20, 2012
More Examples:
Find the area.
N)
6 m
8 m
O) P)
10 m
4 m
6 m
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