Problem 1

40=20% of what number?

 

20×5=100

40×5=200

200

Problem 2

8 1/2% of $500.00=___

81/2% x $500.00=___

10% = 50

1% = 5

.5% = 2.5

50

05

-2.5

——–

$42.50

Problem 3

18=__% of 150

18=__% x 150

18                Y

—–     X    ——

150            100

 

18×100=1800

1800/150 is

0012

150|1800

150

300

300

000

12%

Story Problem For 1st Problem

Konrad went to the store and he saw that there were 40 plates on the shelf. Konrad decided that his friend Harvey would know how many plates that they needed. Harvey, the smart one told him that they needed 20% of what was on the shelf. How many plates does Konrad have to take?

Story Problem For 2nd Problem

Konrad went to the Ice Cream store and he had $500 to spend. Unrealistically, he only wanted to spend 8 1/2%. Realistically, Konrad wasn’t sure how much he should spend. How much do you think he should spend?

Story Problem For 3rd Problem

Konrad has met 18 really good soccer players, there are only 150 good soccer players in the world. What percent of the good soccer players has Konrad met?