Two free sample worksheets on floating point binary for AQA A Level Computer
Science (7517), with full answer keys, so you can see exactly what the full
pack contains before buying anything.

Each sheet reads a floating point number, writes a decimal value back into
the format, normalises one number with a positive mantissa and one with a
negative mantissa - the “positive or negative mantissas” the specification
asks for - and works out the absolute and relative error of a value the
format cannot store exactly.

The format is printed on the sheet: how many bits of mantissa and exponent,
that both are two’s complement, where the binary point sits, and what counts
as normalised. Every value to be converted fits its format exactly, so no
answer depends on whether your department rounds or truncates.

These two sheets are not in the paid pack - they are extra, so nothing is
wasted if you buy it afterwards.

The full pack contains 20 worksheets and 20 answer keys, on different
formats and different numbers. Search ����Vlog for “AQA A Level Computer Science
floating point binary” to find it.

If these are useful, a review is genuinely appreciated - it is the only way
other teachers find resources like this.