In this learning activity you'll solve three binary subtraction problems using the 2's complement method.

You'll find the complement of given angles.

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 use the Base Minus One Complement method to perform binary subtraction. This learning activity has audio content and immediate feedback.

Match the ideas that complement each other

Students are presented with a one-syllable or two-syllable word. They must determine the long vowel used by the word.