Percentages and Tape Diagrams


More Exercises on Percentage Calculations

To express your answer as a fraction, use the calculator that pops up in the lower left corner of the applet when you click inside the box. If your answer is close, move on to the next question.

  • Read the question and do the calculation on a sheet of paper. ​Use the applet below if you need help.
  • To enter the answer as a fraction, click inside the answer box. A calculator will pop up. if it doesn’t, click on its icon.
  • Make sure that the number keyboard is selected.
  • Click on and enter your fraction; (numerator and denominator).
  • Click off to hide the calculator.
  • Press the Enter key on your keyboard.
  • Click “New Problem”.

Use this applet for assistance.


Investigating Part, Whole, and Percentage.

  • Read the question​
  • Identify the parts given and enter them into the appropriate boxes in the second applet below. This gives you a clear picture of what you should be looking for.​
  • Solve the problem using the Triangular Rule.​
  • Enter your answer in the applet. If a calculator pops up, use it to either perform the calculation or to enter the value you obtained. ​
  • Click New Problem to continue.


Compare Amounts Using Fractions

Read the question below and answer it using using the applet.

(A). Noah has $5. Elena has 40% as much as Noah. How much does Elena have?

(B). Noah has $5. Diego has 150% as much as Noah. How much does Diego have?



Decide if each scenario below is possible. Explain your reasoning.

(1). Andre plans to bring his dog on his next hike, along with 150% as much water as he brought on this hike.

(2). Andre plans to drink 150% of the water he brought on his hike.


During the first part of a hike, Andre drank 1.5 liters of the water he brought.

(1). If this is 50% of the water he brought, how much water did he bring?

(2). If he drank 80% of his water on his entire hike, how much did he drink?