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iReady Lessons 4 & 5

Add & Subtract Whole Numbers

TermDefinition
regroup To rearrange the formation of the group.
estimate To give an approximate number or answer based on mathematical thinking.
addend The number being added.
sum The answer to an addition problem.
difference The answer to a subtraction problem.
algorithm A step-by-step method for computing.
reasonableness An answer based on good number sense.
Created by: Tbischer
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