1. Introduction to Integers
Integers are a collection of Whole Numbers and Negative Numbers.
Select a number on the line above
Note: Zero is the origin; it is neither positive nor negative.
2. Addition and Subtraction
Same Signs: Add values and keep the sign. \( (-2) + (-3) = -5 \)
Different Signs: Subtract the smaller from the bigger; keep sign of bigger. \( (-5) + 2 = -3 \)
Different Signs: Subtract the smaller from the bigger; keep sign of bigger. \( (-5) + 2 = -3 \)
3. Multiplication and Division
| Operation | Resulting Sign |
|---|---|
| (+) × (+) or (-) × (-) | Positive (+) |
| (+) × (-) or (-) × (+) | Negative (-) |
✨ Interactive Sign Rules Lab
Choose two signs for Multiplication/Division and predict the result:
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What will the final sign be?
💡 Pro Tip:
- If signs are the SAME, the result is always (+) Positive.
- If signs are DIFFERENT, the result is always (-) Negative.