Mental Math
What is 1% of 400?
4
Change 22% into a decimal.
0.22
35% of 500?
175
125$
A serving of pasta contains 9000 calories. 1000 calories come from carbs. What percent of the total calories come from carbs?
11.11%
What is 10% of 243?
24.3
Change 18% into a reduced fraction.
9/50
32% of 889?
284.48
Out of 2,300 tickets sold for a concert, 1,850 people actually attended. What percentage of the ticket holders showed up?
80.43%
Emily just hired a new employee to work in your garage. In one hour, the employee broke 400 car lights. If this represented 8% of the day's production, how many car lights did you plan on producing that day?
5000 lights
What is 7% of 300?
21
Convert 1/5 to a decimal.
0.2
What percent of 65 is 12?
18.46%
Out of 3200 students of a school, only 46% of them brought a lunch to school. Find out how many students did not bring a lunch to school.
1728 students
6 cm is 32% of the length of Ryan's pencil. What is the total length of Ryan's pencil?
18.75 cm
What is 90% of 50?
45
Convert 1.13 to a percentage
113%
12 is 85% of what number?
14.12
Your food costs are 3000$. Your total food sales are 8500$. What percent of your food sales do the food costs represent?
35.29%
The monthly budget for the cost of printing is 5000$. You spent 10% of the budget on printing. How much did you spend on printing?
500$
What is 35% of 265?
92.75
Convert 20/5 to a percentage
400%
225% of 98.2 metres is?
220.95
Matthew donates 16% of his paycheck every two weeks to a local youth sports program. His paycheck is always 877$. How much money did he donate this month?
280.64$
The chef has 40 pounds of chicken. The trim loss on the chicken is 40% and the cooking loss is 15% of the trimmed weight. How many pounds of trimmed, cooked chicken will the chef have left to serve to his customers?
20.4 pounds of chicken