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Unit 2 Addition and Subtraction
whole numbers and decimals
11
Mathematics
4th Grade
09/21/2013

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Cards

Term
whole number
Definition
set of counting numbers and zero; 0, 1, 2, 3...
Term
sum
Definition
answer to an addition problem
Term
tenths
Definition
one of ten equal parts; first place value after the decimal
Term
hundredths
Definition
one of a hundred equal parts; second place value after the decimal
Term
addend
Definition
any number used to get the sum or total
Term
part
Definition
a portion, division, piece, or segment of a whole
Term
decompose
Definition
to divide a number into smaller parts
Term
operations
Definition
there are four basic operations in math used to solve problems: addition, subtraction, multiplication, and division
Term
decimal
Definition
a point between a whole number and a decimal fraction
Term
round
Definition
to change a number to a more convenient value
Term
estimate
Definition
to make an approximate or rough calculation, often based on rounding
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