Chapter 2: Addition (Vocabulary)

Any numbers being added together.

• addition

• sum

• addend

• unknown

An operation on two or more addends that results in a sum.

• addition

• estimate

• pattern

• regroup

Tags

CCSS.K.OA.A.1

CCSS.K.OA.A.2

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

• Commutative Property of Addition

• Identity Property of Addition

• Mental Math

• Associative Property of Addition

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.9

A problem-solving strategy in which bar models are used to visually organize the facts in a problem.

• bar diagram

• reasonable

• parentheses

• regroup

Tags

CCSS.K.OA.A.1

CCSS.K.OA.A.2

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

• addend

• Identity Property of Addition

• Commutative Property of Addition

• Associative Property of Addition

A number close to an exact value.

• unknown

• estimate

• sum

• pattern

Tags

CCSS.5.NBT.A.4

If you add zero to a number, the sum is the same as the given number.

• addend

• Associative Property of Addition

• Identity Property of Addition

• Commutative Property of Addition

Ordering or grouping numbers so that they are easier to compute in your head.

• pattern

• reasonable

• mental math

• regroup

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.6

CCSS.2.NBT.B.7

CCSS.2.OA.B.2

Symbols that are used to group numbers and show which operations to complete first.

• estimate

• parentheses

• unknown

• bar diagram

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

A sequence of numbers, figures, or symbols that follows a rule or design.

• addend

• regroup

• sum

• pattern

Tags

CCSS.3.OA.D.9