Upcoming SlideShare
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

# Saving this for later?

### Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Standard text messaging rates apply

# Percent Proportions and Percent Bars

4,721
views

Published on

Published in: Technology, Education

5 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

Views
Total Views
4,721
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
52
0
Likes
5
Embeds 0
No embeds

No notes for slide

### Transcript

• 1. Finding Percents of numbersUsing the Is over Of technique in conjunction with drawing percent bars
• 2. What do you think is the answer??• Find 25% of 20• Let’s draw a picture. ? 25% 20 100%
• 3. Can you solve this as a proportion?• Find 25% of 20• What would the proportion look like? x 25 ? 25% 20 100 X=5 20 100%
• 4. We can do this Mathematically by using a special proportion...just find the following... The Percent – it is the easiest to find. Just look for the % sign! The “Of” number - it is always just behind the word of. The “Is” number - it may or may not be near the “is” word. If you find the other two then what is left is the “is”!
• 5. Finding is, of or a Percent is % Use the proportion… of 100 Find the missing number by drawing a bar and using theproportion.a) 15% of 900 is what? x 15 ? 15% 900 100 x = 135 900 100
• 6. Finding is, of or a Percent is % of 100Find the missing number by drawing a bar and using theproportion.b) What % of 84 is 63? 63 % 84 100 63 x% X = 75% 84 100
• 7. Finding is, of or a Percent is % of 100 Find the missing number by drawing a bar and using the proportion.c) 35% of what # is 7? 7 35% 7 35 x 100 ? 100 X = 20
• 8. Finding is, of or a Percent is % of 100Find the missing number by drawing a barand using the proportion.d) 2.5% of 120 is what? ? 2.5% x 2.5 120 100 x=3 120 100
• 9. Finding is, of or a Percent is % of 100Find the missing number by drawing a barand using the proportion.60% of 600 is what number? x 60 600 100 x 60% x = 360 600 100
• 10. Homework: P. 322 #2-26 evensYou MUST show the proportion and thework you do to get the answer.