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Mathematics - Unit 2
Comparing and Ordering Rational Numbers
12
Mathematics
9th Grade
12/19/2017

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Cards

Term
What are rational numbers? Give 3 examples
Definition
Numbers that end. Can be decimals, integers, mixed numbers, or fractions 6, 0.8, -1
Term
What are irrational numbers? Give 3 examples
Definition
Numbers that do not have an end. π √8 √2 √1.6
Term
What are perfect squares? Give 3 examples
Definition
A number that has a whole square root. √4 √25 √9
Term
What are non perfect squares? Give 3 examples
Definition
A number that does not have a whole square root. √7 √15 √10
Term
How do you add and subtracts decimals?
Definition
Line up the decimals and add normally. Put the decimal in after.
Term
How do you divide fractions?
Definition
Change division to multiplication and switch the denominator and numerator.
Term
How do you multiply fractions?
Definition
multiply the numerator by numerator and denominator by denominator. Reduce if the diagonal is able to be reduced by the same number.
Term
How do you add and subtract fractions?
Definition
Make a common denominator and add the numerator.
Term
Is 64/100 a perfect square? Explain
Definition
Yes √64 = 8 √100 = 10 Both are perfect squares.
Term
What numbers square root is 13
Definition
169
Term
What are the types of rational numbers?
Definition
Integers - A positive or negative number without decimals or fractions.
Whole - A positive number including zero without decimals or fractions.
Natural - A positive number not including zero, fractions, or decimals.
Term
A square has an area of 1.44m2 The perimeter of the square is __
Definition
4.8 m
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