Chapter 1: 1-6 Flashcards Preview

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Flashcards in Chapter 1: 1-6 Deck (10):
1

Integers

negative numbers, zero, positive numbers (rational)

2

whole

zero, positive numbers (rational)

3

natural

positive numbers, no zero (rational)

4

rational

includes terminating and repeating decimals. and zero, negative, and positive numbers

5

irrational

square roots, decimals that don't terminate or repeat, and pi. Can't be written as a fraction

6

closure property

addition: a+b is a real number. multiplication: ab is a real number

7

commutative property

addition: a+b = b+a. multiplication: ab = ba

8

associative property

addition: (a+b) + c = a + (b+c). multiplication: (ab)c + a(bc)

9

identity property

addition: a+0 = a, 0+a = a (additive identity). multiplication: a x 1 = a, 1 x a = a (multiplicative identity)

10

inverse property

addition: a+(-a) = 0. multiplication: a x 1/a = 1. a not equal to zero