Most Multimeters work very similar. Most useful is AC Voltage for home, DC Voltage for car or boat, Resistance for checking fuses, resistors, diodes, others.
Most important, if measuring resistance, make sure there is no voltage first, or damage may occur. When Measuring Voltage use higher voltage settings first.
Measuring Current is different, as it goes inline with the circuit. ON/OFF switch is perfect place to connect.
Also if it was an analog meter, and probes are reversed, you may not see needle try to go backwards, if so reverse leads or throw polarity switch.
Just found this:
The Digital Multimeter