The use of numbers and pictures are only a distraction.
See BP966 for the version in which the background counts.
Adjacent-numbered pages: BP884 BP885 BP886 BP887 BP888  *  BP890 BP891 BP892 BP893 BP894
number
Thomas Joyce
Requires cultural knowledge, e.g. for specific warning symbols
Adjacent-numbered pages: BP877 BP878 BP879 BP880 BP881  *  BP883 BP884 BP885 BP886 BP887
easy, less, abstract, spectrum, anticomputer, subjective, culture, invalid