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Compound Interest

Under Review

Reinforce compound interest calculation using word problems. Choose from a variety of problems by selecting Edit Problem Templates, or create your own problem templates.

Change the number of exercises

  1. Click on the box labeled "Number of Exercises" in the options panel.

  2. Type in a new number or use the up and down arrows to change the value. You can choose any number from 1 to 200.

Change the number of exercises in a row

  1. Select "Exercises per Row" in the options panel.

  2. Click the down arrow to choose a new number from the list or use Auto.

Notes:

  • If you are using the default auto settings, the number of questions per row will change automatically when you adjust the font size or the low/high number ranges.

  • For word problems exercises sets, you can only choose 1 or 2 exercises per row.

Change the row spacing

Set the spacing between rows of exercises in 100ths of an inch (25 = 1/4 inch, 40 = 1cm).

  1. Select the input field for the Row Spacing option in the options pane.

  2. Type a new value in the field or use the up and down arrows to increase or decrease the value. Valid range is 0 to 300.

Show title

  1. To show the exercise set Title, select the check box for the Show Title option in the options pane.

  2. To hide the exercise set title, deselect the check box.

Show instructions

  1. To show the exercise set Instructions, select the check box for the Show Instructions option in the options pane.

  2. To hide the exercise set instructions, deselect the check box.

Show the answer bank

  1. To show the answer bank, select the check box for the Show Answer Bank option in the options pane.

  2. To hide the answer bank, deselect the check box.

Show duplicate warning

When this option is selected, a warning is displayed if there are any duplicate exercises in the exercise set. To hide the duplicate warning, uncheck the Show Duplicate Warning option in the options pane.

Add, edit and select problem templates

  1. Select Edit Problem Templates in the options pane. An ellipsis button appears. Click the ellipsis button to open the editor.

  2. Add, edit, and select the problem templates and save your changes.

  3. Click OK to close the editor and apply the changes to the math document.

Set the compounding rates

  1. To the compounding rates, select the Compounding Rates option in the options pane.

  2. Select the check box beside each of the desired rates.

Change Parameters for the Principal

Change the range of values for the principal

To achieve values within a set range, set the the high end of the range and the low end of the range.

  1. To set the high end of the range, select the input field for the Range High option in the options pane and enter a new value to the maximum allowed for that exercise.

  2. To set the low end of the range, select the input field for the Range Low option in the options pane and enter a new value to the minimum allowed for that exercise.

Note

To locate the range for any particular option, check the definition area at the bottom of the options pane when an option is selected. Some exercises allow negative values to be entered for either the high or low end of the range by using the hyphen as the negative sign, i.e. -10, -999, -1000.

Change the distribution of values for the principal

This feature determines whether the randomly selected numbers for the questions are generated completely at random (normal) or if a weighted selector is used (balanced). The balanced setting ensures that small numbers are given an equal chance of being selected along with larger numbers.

To set the distribution of values, select the desired distribution option (Normal or Balanced) next to the Distribution option in the options pane.

Round the values

Apply rounding to the generated values. Values are rounded down to highest value - example: 289 is rounded to 200. To apply or not apply rounding to the generated values, select or deselect the check box for the Round option in the options pane.

Display principal with cents

When checked, this option will display the principal with cents. Example: a principal of $3000 will become $30.00.

Change Parameters for the Interest Rate

Change the range of values for the interest rate

To achieve values within a set range, set the the high end of the range and the low end of the range.

  1. To set the high end of the range, select the input field for the Range High option in the options pane and enter a new value to the maximum allowed for that exercise.

  2. To set the low end of the range, select the input field for the Range Low option in the options pane and enter a new value to the minimum allowed for that exercise.

Note

To locate the range for any particular option, check the definition area at the bottom of the options pane when an option is selected. Some exercises allow negative values to be entered for either the high or low end of the range by using the hyphen as the negative sign, i.e. -10, -999, -1000.

Use or change decimal values

  1. To use or change decimal values, select the drop-down arrow for the Decimals option in the options pane.

  2. Select the desired decimal place values.

  3. Click OK to apply the selected values.

Note

Examples - If you have a number like 256

  • select 1 decimal place, the number will become 25.6

  • select 2 decimal places and the number will become 2.56

  • select 4 decimal places and the number will become 0.0256

Change Parameters for the Time

Change the range of values for the time

To achieve values within a set range, set the the high end of the range and the low end of the range.

  1. To set the high end of the range, select the input field for the Range High option in the options pane and enter a new value to the maximum allowed for that exercise.

  2. To set the low end of the range, select the input field for the Range Low option in the options pane and enter a new value to the minimum allowed for that exercise.

Note

To locate the range for any particular option, check the definition area at the bottom of the options pane when an option is selected. Some exercises allow negative values to be entered for either the high or low end of the range by using the hyphen as the negative sign, i.e. -10, -999, -1000.

Optional Display Settings