Algebra 1 : Integer Operations
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Example Questions
Example Question #101 : Integer Operations
When multiplying a negative number and a positive number, our answer is negative. We just multiply normally. Answer is .
Example Question #102 : Integer Operations
Regardless if the number is positive or negative, anything multipled by zero is always zero. So .
Example Question #103 : Integer Operations
When multiplying two negative numbers, the answer is positive. Then multiply normally. Answer is .
Example Question #104 : Integer Operations
When multiplying two negative numbers, the answer is positive. Then multiply normally. Answer is .
Example Question #105 : Integer Operations
When multiplying with more than two integers, we count the number of negative signs. Since there is one, that means our answer is going to be negative. We multiply from left to right. Answer is .
Example Question #106 : Integer Operations
When multiplying with more than two integers, we count the number of negative signs. Since there is one, that means our answer is going to be negative. We multiply from left to right. Answer is .
Example Question #107 : Integer Operations
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 #108 : Integer Operations
When multiplying with more than two integers, we count the number of negative signs. Since there are three, that means our answer is going to be negative. We multiply from left to right. Answer is .
Example Question #109 : Integer Operations
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 #110 : Real Numbers
Multiply:
First multiply the with the ones digit of the second number, .
Multiply the ones digit.
The carryover is the tens place since we have a number that is 10 or greater.
Multiply the tens digit with the eight, and add the carryover, .
The first line, by multiplying , is .
Skip a line and add a zero as a placeholder for the ones digit.
Multiply the with the tens digit of the second number, .
Combine this number in front of the zero placeholder. We will be adding the two numbers from the first and second line.
We should have:
Add the two numbers.
The answer is:
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