Extend everything you know about arithmetic to negative numbers. You'll learn the sign rules for adding, subtracting, multiplying, and dividing integers, then apply them to fractions and decimals.
Each topic is a short page: read the walkthrough, watch the video, try the practice, then take a quick quiz. Go in order or jump to what you need.
Use the number line and two key rules to combine positive and negative numbers.
Same signs give a positive answer; different signs give a negative answer.
Apply the sign rules to fractions and decimals, not just whole numbers.
By the end of this unit, you should be able to:
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