<p>Assignment # ___ – Adding and Subtracting (Opposites) Name ______</p><p>Standard: NS 1.2 Add and Subtract Integers Pre-Algebra, Period ______</p><p>Date ______</p><p>ADDING a NEGATIVE number is the same as SUBTRACTING the OPPOSITE of the number! 7 + (–8) = 7 – 8 which equals –1</p><p>SUBTRACTING a NUMBER is the same as ADDING its OPPOSITE! 7 – 8 = 7 + (–8) which equals –1 9 – (–9) = 9 + 9 which equals 18 ------</p><p>Rewrite to demonstrate how each expression can be written two ways.</p><p>Two signs One Sign What’s the sum?</p><p>Example: 40 + (–20) = 40 –20 20</p><p>1. 19 + (–6) = ______</p><p>2. ______= 30 – 18 ______</p><p>3. ______= 12 – 17 ______</p><p>4. 8 + (–90) = ______</p><p>Rewrite each subtraction as addition of the opposite, then evaluate.</p><p>Subtract Add opposite Result</p><p>Example: 3 – 10 = 3 + (–10) = –7</p><p>5. –2 – 8 = ______= ______</p><p>6. 4 – 7 = ______= ______</p><p>7. 12 – (–18) = ______= ______</p><p>8. –6 – (–9) = ______= ______</p><p>Bonus: 9. 8 1 10. 4 8 5 1 4 2 2 6</p>