Mental Percents
What is 51% of 84?
42.84
Convert 3% to a decimal.
0.03
What is 21% of 250?
52.5
Celia swam 15 miles before school this morning, so she is awfully hungry. She stopped at a diner to enjoy a quick breakfast before homeroom. If she spent $130 on food for herself, and she generously tips 22%, what will she pay in total?
$158.60
Zoe is going to crush it tomorrow on the math test and earn 60/60. She will also re-submit with her test with 100% written on it to earn 1 additional point of extra credit. This brings her score to 61/60. What is her percent score now?
101.6(r)%
Convert 0.35 to a simplified fraction.
7/20
What is 39% of 700?
273
$345
Rory loves math so much. Mr. Devlin knows this because she told Mr. Devlin that it is her favorite subject at Echo Hill. She gets a job over the summer working at "Math, Math, Math, Super Math." It's a store that sells math supplies and math swag. If she sells $3,000,000 of merchandise over the summer, and she earns a 7% commission. What is her pay over the summer?
$210,000
Convert 5/8 to a decimal.
0.625
What percent is Mr. Devlin thinking right now? Closest guess gets all 400 points.
See Mr. Devlin's notecard.
Emory starts a business that sells cough drops. It's called, "No More Coughin', Thanks to Offen." They do very well, so Emory earns $400,000. What is Emory's withholding rate if his net income is $280,000?
30%
Javier has decided to start a shoe company called Stubbs Against Stubs. They make special shoes with added padding over the toe to ensure that no one stubs their toe. He needs a loan to build a prototype, so he borrows $120,000 at 4% over 3 years. How much will he pay back in total at the end of 3 years?
$134,400
18.18(r)%