Math Chapter 2 Vocabulary

What is an equation?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• Changing the grouping of addends does not change the sum

What is a fact family?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• Changing the grouping of addends does not change the sum

Tags

CCSS.2.OA.C.4

What is the zero property of addition?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• Changing the grouping of addends does not change the sum

Tags

CCSS.1.OA.B.3

What is the grouping property of addition?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• Changing the grouping of addends does not change the sum

Tags

CCSS.1.OA.B.3

What does it mean to estimate?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• To figure a close answer

What is the order/commutative property of addition?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• Changing the order of the addends does not change the sum

Tags

CCSS.1.OA.B.3

What is mental math?

• A number sentence written with an equal sign

• A set of related addition

• The sum of zero and any number is that number

• Adding numbers in your mind without using a pencil or paper

Tags

CCSS.2.OA.A.1