# Our math words

These are Math words we have learned throughout the year.

## Terms

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- product
- the answer to a multiplication problem
- Expression
- a mathematical phrase that uses numbers and operation signs, but not equal signs
- sum
- the answer to an additon problem
- make a ten strategy
- changing the number to a multiple of ten and adjusting the other number
- Commutative Property of multiplication
- the order of the factors is changed, but the product remains the same
- Associative Property of multiplication
- the grouping of the factors is changed, but the product remains the same
- communtative property of addition
- when adding, changing the order of the addends does not change the sum
- millions
- a place to the left of the hundred thousands place
- decimal point
- a symbol used to separate dollar amounts and cents in money amounts and to separate the ones and the tenths place in a decimal
- variable
- a letter or symbol that can stand for any unknown number
- fact family
- a set of related multiplication and division equations using the same numbers
- period
- a group of three numbers Ex. ones, thousands, and millions
- associative property of addition
- when adding, changin how the addends are groups does not change the sum
- benchmark
- a known number of things that help you understand the size or amount of a different number
- quotient
- the answer to a division problem
- decimal
- a number with one or more digits to the right of the decimal point
- digit
- a number
- break apart strategy
- break numbers apart, add ones and ten separately
- front-end estimation
- using only the front digits to estimate
- equation
- a number sentence with an equation sign
- multiple
- the product of a given number and another whole number
- round
- to replace a number with another number
- inverse operations
- opposite operations that undo each other
- Zero property of multiplication
- the product of 0 and any number is 0
- identity property of multiplication
- the product of 1 and any number is that number
- difference
- the answer to a subtraction problem
- identity property of addtion
- when you add zero to a number, the sum is that number