General Algebra Flashcards
What sign is a negative times/divide a negative?
Positive
What sign is a positive times/divide a positive?
Positive
What sign is a negative times/divide a positive?
Negative
How do you add a positive number and a negative number?
For example:
Whenever you are adding and the numbers have opposite signs, you subtract them and give the answer the sign of the bigger value.
For example:
How do you add a positive number and a negative number?
For example:
Whenever you are adding and the numbers have opposite signs, you subtract them and give the answer the sign of the bigger value.
For example:
How do you add a negative number and a positive number?
For example:
Whenever you are adding and the numbers have opposite signs, you subtract them and give the answer the sign of the bigger value.
For example:
How do you add a negative number and a positive number?
For example:
Whenever you are adding and the numbers have opposite signs, you subtract them and give the answer the sign of the bigger value.
For example:
How do you subtract a negative number?
For example, 8 – -5.
The two neighbor negatives turn into a positive, so you add them.
8+5=13
How do you subtract a number that is too big?
For example, 15–35.
Since the second number is bigger, the answer will be negative. You just subtract them and make the answer negative.
15–35= -20
since 35–15=20 and you just make it negative.
What does it mean when you square a number?
You multiply it by itself.
What is the order of operations?
- Brackets
- Exponents
- Division/Multiplication
- Addition/Subtraction
What is the solution to the following?
0x=12
There is no solution.
Anything times zero is still zero, so no matter what x is, it would be impossible to multiply it by zero and get 12.
What is the solution to the following?
0x=0
Infinite solutions.
Zero times anything is zero, so x could literally by any number in the world and this would still work.
How do you get a variable out of the denominator?
