Vocab Flashcard 2 19-20

Front

round

Back

to replace a number with another that tells about how much

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Front

Approximate number or answer

Back

estimate

Tags

CCSS.L.5.5C

Front

Numbers easy to add, subtract, multiply, or divide mentally.

Back

Compatible numbers.

Front

Two operations that undo each other?

Back

inverse operations

Tags

CCSS.8.EE.C.7B

Front

Numbers added to get a sum?

Back

addends

Front

Answer to an addition problem

Back

sum

Tags

CCSS.1.OA.A.1

Front

Answer to a subtraction problem

Back

difference

Tags

CCSS.5.NBT.B.7

Front

Symbol for a number in an equation

Back

unknown

Front

Representation to illustrate a number sentence

Back

strip diagram

Tags

CCSS.2.NBT.B.7

Front

Operation combining two or more numbers

Back

addition

Tags

CCSS.6.NS.B.3