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# 2. Decimal Operation

Commutative Property The order of addends can be changed and the sum remains the same.
Associative Property Addends can be regouped and the sum remains the same.
compatible numbers Numbers which are easy to compute with mentally,
compensation Adjusting one number of an operation to make computation easier and balancing the adjustment by changing the other number.
rounding A process that tells which multiple of 10, 100, 1,00 etc...a number is closest to.
exponent A number that tells how many times the base is used as a factor.
decimal A number with one or more digit to the right of the decimal point.
decimal place The position of a digit to the right of a decimal point.
standard algorithm Specific method to solve a mathematical problem.
sum The number that is the result of adding two or more addends.
difference The number that results from subtracting one number from another.
product The number that is the result of multiplying two or more factors.
factors Numbers that are multiplied to get a product.
Distributive Property Multiplying a sum (or difference) by a number is the same as multiplying each number in the sum (or difference) by the number and adding (or subtracting) the product.
multiple The product of a given whole number and any other whole number.
exponential notation A way to write a number using a base and an exponent
base The number that is multiplied by itself when raised to a power.
standard form A common way of writing a number with commas separating groups of three digits starting from the right.
expanded form A way of writing numbers involving exponents that shows the base as a factor.
squared A name for a number to the second power.
cubed A name for a number to the third power.
power A number that tells how many times the base is used as a factor.
Created by: KHenik