1. Chapter 4 Negative Numbers

2. Learning Objectives Order numbers Subtracting a larger number from a smaller number Adding negative numbers Subtracting negative numbers Multiplying negative numbers Dividing negative numbers

3. Directed Numbers -3-2-1 0 1 2 3 4 5

4. Directed Numbers Adding/ Subtracting Note: Move up and down number line. If two signs side-by- side replace with a single sign. If signs different replace with – If signs same replace with + Examples 1.2 + (-6) 2.30 – 20 + 10 – 50 3.-10 – (-6) + 4 4.3 + (+3) + (-9)

5. Directed Numbers Multiplying/ Dividing Note: Do sign 1 st - if signs same answer is positive - if signs different answer is negative Then do multiplication/ division Examples 1.(-7) × (3) 2.8 × (-10) 3.(-5) × (+3) × (+4) 4.(+24) ÷ (-3) 5.(-30) ÷ (-6)