Set 18 (evens) is due on Tuesday, September 25th. Test #2 will be on Tuesday, October 2nd. The lesson discusses rounding numbers to estimates that end in one or more zeros. It also covers rounding mixed numbers to the nearest whole number by determining if the fraction is more than or less than 1/2. Examples are shown but not explained in the document.

1. lesson 17.notebook September 21, 2012
Assignment:
1­­>Set 18 (evens) ­ Due Tuesday (9/25)
2­­>Test #2 ­ Tuesday (10/2)
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2. lesson 17.notebook September 21, 2012
Lesson 17 Warm­up:
1) Lucas can type 20 words per minute.
How many words can he type in 2 1/2 minutes?
2) Solve by inspection: 7x ­ 1 = 20
3) Write 0.24 as a reduced fraction and as a percent.
4) Which is a better discount:
a. Price of $20 is reduced by 30%
b. Price of $20 reduced by 1/4
c. Price of $20 is reduced by $4
5) How many quarts are in 3 gallons?
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3. lesson 17.notebook September 21, 2012
Lesson 17:
*We round numbers to get an estimate, rather than an exact
amount.
*Typically that number will end in 1 or more zeros!
*To round a mixed number to the nearest whole number, we decide
if the fraction is more than or less than 1/2.
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4. lesson 17.notebook September 21, 2012
Examples ­ Lesson 17
pg. 111
A)
B)
C)
D)
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5. lesson 17.notebook September 21, 2012
E)
F)
G)
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6. lesson 17.notebook September 21, 2012
H)
I)
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