3rd grade My Math Vocabulary Unit 2

The property which states that grouping the addends does not change the sum.

• Associative Property

• Identity Property

• Commutative Property

• pattern

Tags

CCSS.1.OA.B.3

A bar diagram is used to...

• illustrate number relationships

• add numbers

• subtract numbers

• show a pattern

Tags

CCSS.7.NS.A.1C

The property which states the order in which two numbers are added does not change the sum.

• Associative Property

• Commutative Property

• Identity Property

• mental math

Tags

CCSS.1.OA.B.3

estimate means...

• a bigger number

• a number close to an exact value (i.e. about $300)

• a smaller number

• a negative number

The property which states if you add a zero to a number, the sum is the same as the given number.

• Commutative Property

• Associative Property

• Identity Property

• pattern

Tags

CCSS.1.OA.B.3

mental math is...

• ordering or grouping numbers so they are easier to add in your head.

• when you make up the answer in your head.

• when you think about a problem really hard.

• when you guess!

Which example has parentheses?

• 
• 
• 
• 

Tags

CCSS.3.OA.B.5

A set of numbers that follows a certain order.

• pattern

• group

• parentheses

• estimate

Tags

CCSS.3.OA.D.9

Reasonable means...

• it makes sense.

• it is a weird number.

• you cannot figure it out.

• it is a big number.

Tags

CCSS.L.5.5C

An unknown is...

• a number that you cannot name.

• a number that is too big.

• a number that is too hard to figure out.

• a number that is missing, or needs to be solved for.

Tags

CCSS.1.OA.A.1