counting numbers
Natural numbers, or the numbers we say when we count. { 1,2,3,4,5...}
whole numbers
The counting numbers including 0.
operations of arithmetic
The 4 fundemental operations in math are addition, subtraction, division and multiplication.
addends
Numbers that are added.
sum
The answer to an addition problem
factors
The numbers that are multiplied.
product
The answer to a multiplication problem.
difference
The answer to a subtraction problem
minuend
A number from which another number is subtracted. Usually the first number in a subtraction problem.
subtrahend
A number that is subtracted. Usually the 2nd number in a subtraction problem.
quotient
The answer to a division problem.
dividend
In division, this is the number that is divided.
divisor
A number by which another number is divided.
variables
letters used to represent numbers.
commutative property
a+b=b+a; when you change the order in which you multiply or add, the answer remains the same
associative property
(a+b)+c=a+(b+c); when you change groupings using parenthesis and the answer remains the same
distributive property
a(b+c)=a(b)+a(c); when multiplying term outside parenthesis to terms inside parenthesis
additive identity
b+0=b; when adding 0 to a number the number stays the same
multiplicative identity
c*1=c; when multiplying 1 to a number the number stays the same
fact family
A group of 3 numbers that are related by addition and subtraction or multiplication and division.
equation
A statement that 2 quantities are equal.
origin
The 0 point on of a number line
perfect square
The product of mulitplying a number by itself.
Expanded notation
Writing a number by writing each nonzero digit times its place value. Ex. (2 x 100) + (3 x 1) = 203
