Chapter 1 : Whole Numbers & Patterns Flashcards
A answer that is close to the exact answer, but are easier & faster to find. [found by: mostly ________, and other methods]
estimate; [rounding]
Numbers from the times table that go together easily.
compatible numbers
An estimate that is less than the exact answer.
underestimate
An estimate that is greater than the exact answer.
overestimate
The number that indicates how many times a number is used as the factor.
exponent
The number that is used as a factor when a number is raised to a power.
base
A number is in ____________ when it is written with a base and an exponent.
exponential form
a mathematical phrase
expression
A mathematical phrase that contains only numbers and operations.
numerical expression
To write a fraction or expression in simplest form.
simplify
A rule for evaluating expressions [ ______ ]
Order of Operations ; [PEMDAS]
doing math in your head
mental math
Many mental math strategies use ___________________ that you already knew to make equivalent expression that may be easier to simplify.
number property (properties)
The _______ [________] states that two or more numbers can be added or multiplied together in any order.
Commutative Property ; [Ordering]
The _________ [________] states that we can change groupings of numbers when we add or multiply.
Associative Property ; [Grouping]
