The Truth is you only need to take the CSET!
Save yourself money and time by ONLY taking the CSET and an additional subtest. I recently went to UCI's Multiple Subject Credential Program Orientation and found out, that if you are planning on getting your California Multiple Subject Teaching Credential, within 5 years, it's better to take the general CSET first and add the subtest 142.
CSET 101, 102, 103 + Subtest 142 of the CSET exam= comprises a substitute for the CBEST :)
In actuality, It cheaper and smarter to take the CSET first!
You're Welcome ;)