Learners use this interactive and animated object to examine the use of binary numbers in a programmable logic controller. A brief quiz completes the activity.

Students read how to organize their work when multiplying more than two signed numbers. A review and practice problems complete the activity.

Students read the rules used in multiplying and dividing signed numbers. They view examples and work practice problems.

Learners follow the steps for adding and subtracting signed numbers and complete practice exercises.

Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.