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Race Car IntegersRace Car Integers
October 18, 2013October 18, 2013
Race Car RulesRace Car Rules
Positive numbers mean “forward”
Negative numbers mean “reverse”
Add means “keep going” Subtract means “turn around”
Positive numbers mean “forward”
Negative numbers mean “reverse”
Add means “keep going” Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 + 4 Example: 3 + 4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 + 4 Example: 3 + 4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 + 4 = 7 Example: 3 + 4 = 7
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 + –4 Example: 3 + –4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 + –4 Example: 3 + –4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 + –4 = –1 Example: 3 + –4 = –1
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – 4 Example: 3 – 4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – 4 Example: 3 – 4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – 4 Example: 3 – 4
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – 4 = –1 Example: 3 – 4 = –1
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – (–4) Example: 3 – (–4)
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – (–4) Example: 3 – (–4)
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – (–4) Example: 3 – (–4)
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 3 – (–4) = 7 Example: 3 – (–4) = 7
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: 5 – (–2) = ? Example: 5 – (–2) = ?
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: –5 – (–2) = ? Example: –5 – (–2) = ?
–15 –10 –5 0 5 10 15
-3
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
Example: –5 – 2 = ? Example: –5 – 2 = ?
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
Race Car RulesRace Car Rules
–15 –10 –5 0 5 10 15
Positive numbers mean “forward”Negative numbers mean “reverse”Add means “keep going”Subtract means “turn around”
