1/9 is about 11% because 1/3 of 1/3 is 1/9 and 1/3 of 33 1/3 % is about 11%; 7/9 is about 77%. Also note: 9x11 = 99, which is about 100. Learnist Board: http://bit.ly/13AGhZq More information at http://bit.ly/ZXLw0I #P17

1. 1/9 is about 11%
To find 11% of a number divide by 9.
1
11%
9

2. 0% 11% 22% 33% 44% 55% 66% 77% 88% 100%
0 1 2 3 4 5 6 7 8 9
9 9 9 9 9 9 9 9 9 9
1 2
3 3

3. Find the percent
1. $5 is what percent of $9? 5
55%
9
2. 80 goals in 90 shots is what percent?
80 8
88%
90 9

4. Recall the strategy:
To find A% of B
You can change the percent to a fraction,
Find B divided by the bottom, then
Multiply by the top.
Find 77% of 180
7 180
77% of 180 180 7 20 7 140
9 9

5. Find the number
1. Find 11% of 27. 1
of 27 (27 9) 3
9
2. Find 122% of 360.
2
122% of 360 100% of 360 + 360 360 80 440
9
3. Find 66⅔% of 936. (Hint: Use front end.)
2 936
of 936 *2 312 * 2 624
3 3

6. Examples:
1. If there are 450 students
enrolled at Mark Twain
50 5 1
Elementary and 50 are absent, 11%
what percent are absent? 450 45 9
2. If Jacy makes 40 of her three-point attempts out of 90
attempts, what is her shooting percent?
40 4
44%
90 9
2. If 22% of the customers pay their gas bill online and
there are 2700 customers, how many pay their gas bill
online?
2 2700
of 2700 2 300 2 600
9 9

7. Closing Notes
 Remember 

8. Recap
Here are the percents we know so far.
Fraction Percent
1/2 50 %
1/3 33⅓ %
1/4 25 %
1/5 20 %
1/6 16⅔ %
1/8 12½ %
1/9 11 %