vocabulary 1 - GoMath Ch. 1

associative property of addition

• the property that states that you can group addends in different ways and still get the same sum
• the property that states that you can add two or more numbers in any order and get the same sum
• numbers that are easy to computer with mentally
• the answer to a subtraction problem

commutative property of addition

• the property that states that you can add two or more numbers in any order and get the same sum
• numbers that are easy to computer with mentally
• the answer to a subtraction problem
• to find about how many or how much

compatible numbers

• numbers that are easy to computer with mentally
• the answer to a subtraction problem
• to find about how many or how much
• the property that states that when you add zero to a number, the result is that number

difference

• the answer to a subtraction problem
• to find about how many or how much
• the property that states that when you add zero to a number, the result is that number
• an ordered set of numers or objects in which the order helps you predict what will come next

estimate

• to find about how many or how much
• the property that states that when you add zero to a number, the result is that number
• an ordered set of numers or objects in which the order helps you predict what will come next
• to replace a number with another number that tells about how many or how much.

identity property of addition

• the property that states that when you add zero to a number, the result is that number
• an ordered set of numers or objects in which the order helps you predict what will come next
• to replace a number with another number that tells about how many or how much.
• the property that states that you can group addends in different ways and still get the same sum

pattern

• an ordered set of numers or objects in which the order helps you predict what will come next
• to replace a number with another number that tells about how many or how much.
• the property that states that you can group addends in different ways and still get the same sum
• the property that states that you can add two or more numbers in any order and get the same sum

round

• to replace a number with another number that tells about how many or how much.
• the property that states that you can group addends in different ways and still get the same sum
• the property that states that you can add two or more numbers in any order and get the same sum
• numbers that are easy to computer with mentally