Summary
Contents
The author focuses especially on weaknesses in numeracy often observed in adults, and in teacher-trainees in particular.
Check-up 20: Very Large and Very Small Numbers
Check-up 20: Very Large and Very Small Numbers
- A teacher's personal computer has 8 Gb (gigabytes) of memory available. Which of the following would be alternative ways of expressing this:
A eight thousand million bytes B 8 000 000 000 bytes C C8 × 109 bytes D 8E9 - A total of 8 pupils gained no marks in a sample of 2207 of those who took the Key Stage 2 handwriting test. To express this proportion as a decimal, I entered 8/2207 onto my on-screen calculator. The answer displayed was 3.6248301 E-3. What does this mean? What percentage of the sample gained no marks?