CC3 Chapter 2 Vocabulary

Adding 0 to any number does not change the number. What is number 0 called?

• Additive Identity

• Associative property

• Additive Inverse

• Combining like terms

Tags

CCSS.1.OA.B.3

The number you need to add to a given number to get a sum of 0.  For example, adding −3 to 3 gives 0.  It is also called the opposite.

• additive identity

• additive inverse

• associative property

• variable

Tags

CCSS.7.NS.A.1B

This property states that if a sum contains terms that are grouped, then the sum may be grouped differently with no effect on the total. That is, 𝑎+(𝑏+𝑐)=(𝑎+𝑏)+𝑐.. For example, 3+(4+5)=(3+4)+5.

• Additive Identity

• Inverse Identity

• Combining Like Terms

• Associative Property of Addition

Tags

CCSS.1.OA.B.3

Combining two or more like terms simplifies an expression by summing constants and summing same variable terms.

• Additive Inverse

• Additive Identity

• Combining like terms

• Associative Property

Tags

CCSS.7.EE.A.1

This property states that if two terms are added, then the order may be reversed with no effect on the total. That is, 𝑎+𝑏=𝑏+𝑎. For example, 7+12=12+7. 

• Commutative Property of Addition

• Additive Inverse

• Additive Identity

• Associative Property of Addition

Tags

CCSS.1.OA.B.3

What is this called?

• Equation Mat

• Combining Like Terms

• Algebra Tiles

• Math

Tags

CCSS.6.EE.B.6

Define Evaluate

• Variable

• Combine like terms

  combining like terms in the expression 3𝑥+7+5𝑥−3+2𝑥2+3𝑦2 gives 8𝑥+4+2𝑥2+3𝑦2

• To find the value of.  For example, evaluating 2𝑥+𝑦−10 when 𝑥=4 and 𝑦=3 gives the value 1.

• Algebra Ti;es

Tags

CCSS.6.EE.A.2C

A letter or symbol used to represent an unknown number.

• Expression

• Term

• Variable

• Algebra

Tags

CCSS.6.EE.A.2B

Multiplying any number by 1 does not change the number.  For example, 7(1)=7. Number 1 is called

• Additive Identity

• Multiplicative Identity

• Algebra

• Associative Property

Tags

CCSS.5.NBT.B.7

A non-zero number is the number we can multiply by to get the multiplicative identity, 1.  For example, for the number 5, the multiplicative inverse is 1/5;  for the number 2/3 the multiplicative inverse is 3/2.

• Associative Property

• Multiplicative Identity

• Multiplicative Inverse

• Communitative Property

Tags

CCSS.7.NS.A.1B