John Saxon's book "Use of Calculators" or C.C. Edwards "for Dummies" series teach how to use a scientific calculator. Some come with a book explaining how to use the calculator or can be purchased separately, such as Hewlett-Packard products.
I found a few sites for you to have a look at that can help you and teach you how to use a savings calculator. Here are the sites I have found apps.finra.org Investors Tools & Calculators ,www.moneysupermarket.com/savings/savings-calculator/
How to use the force. ( The Power enterprise)
You could teach them how to use the manual to find the information that they need.
either use a calculator or look in the back of the book
no sorry you can not use a calculator
A ruler and a calculator. Or a math text book.
you are not allowed to use calculator on CPT! :(
For basic algebra, you can use a calculator with basic functions on it used for arithmetic. If you are trying to solve more complex equations, a scientific calculator will suit you better.
I suggest you use a calculator or, better still, a spreadsheet.