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Topic 1 & 2 EnVision math 2.0
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Terms in this set (16)
Commutative Property of Addition
The property that states that numbers can be added in any order and the sum remains the same.
Associative Property of Addition
The property that states that addends can be regrouped and the sum remains the same.
Identity Property of Addition
The property that states the sum of any number and zero is that number.
Counting On
Counting up from the lesser number to the greater number to find the difference of two numbers.
compensation
Choosing numbers close to the numbers in a problem to make the computation easier, then adjusting the answer for the numbers chosen.
variable
A symbol or letter that stands for a number.
algorithm
A set of steps used to solve a math problem.
inverse operation
Operations that can undo each other.
place value
The position of a digit in a number that tells the value of the digit.
millions
In a number, the period of three places to the left of the thousands period.
period
In a number, it is a group of three digits, separated by commas, starting from the right.
expanded form
The number written as the sum of the values of its digits.
greater than symbol >
In a number sentence, a symbol that points away from a greater number or expression.
less than symbol <
In a number sentence, a symbol that points toward a lesser number or expression.
rounding
The process that determines which multiple of 10, 100, 100, and so on, a number is closest to.
conjecture
A statement that is believed to be true but has not been proven.
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