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M.3.2.1 BISD

Addition/Subtraction and Relationships Between Numbers

TermDefinition
inverse operations one operation undoes the effect of the other operation
estimate a strategic choice of number
compatible numbers numbers that are easy to compute mentally
reasonableness using logic to justify the solution to a problem
approximate close in value or amount, about, but not exact
number pairs two numbers that are related
relationship the reason or way numbers or objects are connected or organized
pattern repeated order following a rule
input-output table a table that uses a rule to relate one set of numbers to another set of numbers
number sentence a mathematical sentence written using numbers and symbols
equation a number sentence that uses the equal sign to show that two expressions have the same value
difference the amount left over when one number is subtracted from another; the answer to a subtraction problem
sum the result to adding numbers or quantities together; the answer to an addition problem
verbal descriptions using words to describe the relationship
Created by: mgallego
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