All Pre-Algebra Resources
Example Questions
Example Question #5 : Subtract Rational Numbers And Understand The Absolute Value Of Their Difference: Ccss.Math.Content.7.Ns.A.1c
When two minus signs meet, the sign becomes positive. Since is greater than and is negative, our answer is negative. We treat as a subtraction problem. Answer is .
Example Question #254 : Operations And Properties
When a positive number and a negative number is multiplied, the answer is negative. Just multiply normally. Answer is .
Example Question #255 : Operations And Properties
When two negative numbers are multiplied, the answer is positive. Multiply normaly. Answer is .
Example Question #41 : Negative Numbers
When two negative numbers are divided, the answer is positive. Divide normaly. Answer is .
Example Question #42 : Negative Numbers
When a positive number and a negative number is divided, the answer is negative. Just divide normally. Answer is .
Example Question #43 : Negative Numbers
There are three negative numbers. If there is an odd number of negative numbers being divided, our answer is negative. Since three is odd, our answer is negative. We divide from left to right. Answer is .
Example Question #44 : Negative Numbers
There are three negative numbers. If there is an odd number of negative numbers being multiplied, our answer is negative. Since is odd, our answer is negative. We multiply from left to right. Answer is .
Example Question #1 : Add And Subtract Rational Numbers: Ccss.Math.Content.7.Ns.A.1d
Subtract:
Eliminate the double negatives first.
Double negatives will result in a positive sign.
Simplify the terms.
Example Question #265 : Operations
Solve:
In order to evaluate this expression, first square the terms inside the parentheses.
Multiply the terms inside the parentheses.
Simplify.
Example Question #5 : Understand Distances Between Numbers On A Number Line: Ccss.Math.Content.7.Ns.A.1b
When a plus and minus sign meet, we have a minus sign.
Since is greater than and is negative, our answer is negative.
We treat as a normal subtraction.
Answer is .
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