IM - Unit 5 Vocabulary

Front

arithmetic

Back

another word for math

Front

estimate

Back

a reasonable guess for an answer based on rounding

Front

sum

Back

the answer to an addition problem

Front

decimal point

Back

the dot placed at the end of a whole number

Front

compatible numbers

Back

numbers that are easier to work with mentally, often making numbers end in 0 or 5

Front

annex

Back

to add a zero as a place value holder in a number

Front

decompose

Back

to break apart a number by its place value