The BFC (Big Friendly Calculator) - Sample Screenshots

Both versions can be made bigger and smaller to suite your requirements.

The Calculation List facility enables you to view all of the calculations you have carried out.
The Calculation List can be saved as a text file and can also be printed out.

	Use the constant facility to: count on from any number in a step of any size - whole numbers or decimals count back from any number in a step of any size demonstrate and discuss negative numbers by counting back beyond zero demonstrate multiples as repeated addition carry out repeated doubling carry out repeated halving
	Demonstrate and discuss the patterns associated with multiplication by 10, 100, 1000 etc. Demonstrate and discuss the patterns associated with division by 10, 100, 1000 etc.
	Investigate the relationship between fractions and decimals. Investigate the patterns that exist in some recurring decimals, for example with elevenths. The BFC - Red has a square root facility. The Calculation List displays the results clearly for you, as shown here.

The Calculation List provides an explanation of any errors that occur as shown below.