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Skills practice 9 handout (1 – 12) odd and 13 – 22 (all)

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Presentation on theme: "Skills practice 9 handout (1 – 12) odd and 13 – 22 (all)"— Presentation transcript:

1 Skills practice 9 handout (1 – 12) odd and 13 – 22 (all)

2

3

4 “Using Percent” Goals:
To convert fractions and decimals to percent (and vice versa) To solve equations involving percent

5 To divide any number by 100, you can move the decimal two places
0.35

6 Percent The ratio of a number to 100.
Can be converted to a fraction or to a decimal.

7 Write as a decimal: 35% = 0.35

8 Write as a decimal: 5% = 0.05

9 Write as a decimal: 137% = 1.37

10 Write as a decimal: 0.5% = 00000 0.005

11 Write as a decimal: % =

12 Write as a decimal: 100% = 1

13 Write as a fraction: 29% =

14 Write as a fraction: 14% =

15 Write as a fraction: 37.5% = •10 ÷25 Cannot leave fractions or decimals in fractions

16 Write as a percent: Cross-product 

17 Write as a percent: Cross-product 

18 Write as a percent: Step 1: Convert to decimal Step 2:
Move decimal 2 places

19 Write as a percent: Step 1: Convert to decimal Step 2:
Move decimal 2 places

20 Write as a percent: Step 1: Convert to decimal Step 2:
Move decimal 2 places

21 Write as a percent: Step 1: Convert to decimal Step 2:
Move decimal 2 places

22 Write as a percent: Step 1: Convert to decimal Step 2:
Move decimal 2 places

23 15% of 60 is what number? 0.15 • 60 = x 9 = x

24 25% of what number is 15 .25 • x = 15

25 30% of what number is 27

26 What is 20% of 45

27 24 is what percent of 120 24 = • 120 2400 = 120x 20 %

28 What percent of 80 equals 32?

29 What percent of 30 equals 66?

30 12% of 40 is what number?

31 35% of what number equals 1.4?

32 Assignment: Page 156 1 – 36 (even) and 45 - 50

33 Solve: Write as a decimal: 2) 60% 4) 1% 6) 180% 8) 0.6%
10) 2.8% Express as a percent (round to tenth): Solve:


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