Consider these CCs lines:

 

*col (c1-c10)

*sub name=(Addition), title=(Add)

*key DCCAB BCDDA

*col (c11-c20)

*sub name=(Subtraction), title=(Sub)

*key BBBCA DAACB

*col (c21-c30)

*sub name=(Multiplication), title=(Mult)

*key CDCAB AAACC

*col (c31-c40)

*sub name=(Division), title=(Div)

*key AADCC CBAAA

 

Someone's given a maths test with four subtests.  Each subtest had ten items.

 

Lertap will create four subtest scores, and a total score.  The total score will simply be the sum of the four subtest scores.  The maximum possible score on each subtest is 10, hence the maximum possible total score is 40.  (It is possible to change the number of points given for right answers by using *mws and *wts lines in the CCs worksheet.)

 

The *sub lines do not have Res= declarations, so Lertap will assume Res=(A,B,C,D) for each subtest.