Chapter 19 Percent: Per means Divide, Cent means 100

5th Grade Math
Mr. Knostman (937)573-7212
Chapter 19
TEST
Goals
Notes
Percent:
8/18/2016
Per means Divide, Cent means 100
Fraction - Decimal - Percent Handout Test when you finish this chapter.
Chapter
Read Pages
Lesson
19 - 1
506
19 - 2
508
Problem
Pages
507
Problem #'s
Comments
1 - 40 Even
Step 1, 2, and 3 are separate problems. Questions?...See me.
509
4 - 19, 22
Do NOT read page 510 OR WAY 1 on the top of page 511.
19 - 3
Do read page 511, WAY 2 and Another Example ..
512
17 - 28
Do NOT read page 514. The examples make an easy problem difficult.
To calculate 10% of a number, multiply by 0.1
19 - 4
10% = 0.1 and of means multiply. 20% = 0,2, therefore multiply by 0.2
A.) 10% of 60 = 0.1 x 60 = 6
B.) 20% of 60 = 0.2 x 60 = 12
EXAMPLES
19 - 4
515
9 - 23, 28, 30
You should be able to do these mentally.
Use WAY 2 OR WAY 3
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517 - 518
23 - 30, 34, 35
Do NOT use a calculator
First calculate the discount. Then subtract the discount from the original price.
520
521
3, 5, 6
#5) No Calculators. 140/560 = 1/4 = ?%
19 - 6
See me if you need help doing them mentally:
Do the same for 280 and 70 mentally
522
8, 9
Quick Check
523
1 - 10
Chapter 17 Review Test
1-3, 11-14, 15 (do both ways: by fraction and decimal), 19, 20
524
TEST TEST
Fraction - Decimal - Percent Handout Test when you finish this chapter.
Chapter 19 Vocab: percent, ratio,