Pre-Algebra : Operations and Properties
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Example Questions
Example Question #12 : Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
Solve:
Since 
Example Question #13 : Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
Solve:
When adding two negative numbers, we treat as an addition problem and add the minus sign in the end. The answer is 
Example Question #14 : Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
Solve:
Since 
Example Question #8 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c
Solve:
Two minus signs becomes a plus sign. Since 
Example Question #5 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c
Solve:
Two minus signs become a plus sign. This is just simple addition. Answer is 
Example Question #281 : Operations
Solve:
When multiplying a negative number and a positive number, our answer is negative. Multiply normally. Answer is 
Example Question #282 : Operations
Solve:
When multiplying two negative numbers, the answer is positive. Then multiply normally. Answer is 
Example Question #71 : Negative Numbers
Solve:
When multiplying with more than two integers, we count the number of negative signs. Since there are two, that means our answer is going to be positive. We multiply from left to right. Answer is 
Example Question #5 : Divide Integers: Ccss.Math.Content.7.Ns.A.2b
Solve:
When dividing a negative number and a positive number, our answer is negative. Divide normally. Answer is 
Example Question #282 : Operations
Solve:
When dividing two negative numbers, the answer is positive. Then divide normally. Answer is 
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