7th grade Rational #'s, Integers Flashcards
What are the 4 types of rational numbers?
- integers. 2. terminating decimals. 3. repeating decimals. 4. fractions that turn into repeating or terminating decimals
What is an irrational number?
a decimal that goes on forever without a pattern
When adding 2 negatives your answer is always…
negative
When multiplying or dividing 2 negatives your answer is always…
positive
When adding 1 negative and 1 positive you know the sign of the answer by…
which number is bigger. if negative number is bigger than answer is negative. if positive number is bigger that answer is positive
How do you change a fraction to a decimal?
divide top by bottom
Absolute value is…
the distance a number is from zero
Can absolute value be negative, positive or both?
positive
Subtracting a negative is the same as…
adding
When you are finding the difference between a negative and positive, your answer gets…..
When finding the difference between a neg and a pos your answer gets bigger.
You find absolute values of both.
What is the rule for dividing fractions? Multiplying fractions?
NOR or NOF for dividing, straight across for multiplying
What do you have to do to mixed numbers before x or ÷?
change them to improper fractions
The bigger the negative the….
smaller the number
subtracting a number from a negative makes a….
bigger negative
multiplying and dividing with only 1 negative your answer is…
negative