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Flashcards in Basic Algebra Review Deck (12)
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1

What sign is a negative times/divide a negative?

Positive 

2

What sign is a negative times/divide a positive?

Negative

3

How do you add a positive number and a negative number?

For example, 4+-7.

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, 4+-7=-3 since 7-4=3 and 7 is bigger than 4.

4

How do you subtract a negative number?

 

For example, 8 - -5.

The two neighbour negatives turn into a positive, so you add them.

 

8+5=13

5

What does it mean when you square a number?

You multiply it by itself.

6

How do you add a positive number and a negative number?

For example, 24+-50.

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, 24+ -50= -26 since 50-24=26 and 50 is bigger than 24.

7

How do you add a negative number and a positive number?

For example, -11+7.

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, -11+7=-4 since 11-7=4 and 11 is bigger than 4.

8

How do you add a negative number and a positive number?

For example, -20+50.

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, -20+50=30 since 50-20=30 and 50 is bigger than 30.

9

How do you isolate a variable in an equation?

You apply BEDMAS backwards until the variable is all alone with no exponents

10

What is the order of operations?

  • Brackets
  • Exponents
  • Division/Multiplication
  • Addition/Subtraction

11

What sign is a positive times/divide a positive?

Positive

12

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.