Equality in Equations

If a + 5 = 15 then a is ___

• 5

• 10

• 15

If x = x, then x + 6 = x + 6. This property of equation is __________ property of equality

• Addition

• Subtraction

• Multiplication

• Division

if x + 6 = 8, then 6 + x = 8 also. This is an example of the ________________

• Commutative Property

• Identity Property

• Symmetric Property

• Substitution Property

Which property is shown below?
__________________________
7n = 21 then n = 3

• Division Property
• Sorcery
• Reduction of Multiples
• Distributive Property

A math sentence that has two sides being equal to each other

• equation

• expression

• equinox

• equilibrium

The state or condition of being equal, and each property has it in its name

• equality

• equator

• equilateral

• adequate

Using the identity property of Addition, what number fills in the blank?

24 + ____ = 24

• 24

• 2

• 0

Adding zero to any number does not change the number. The sum will be that number.  Which property is this?

• Commutative Property
• Identity Property

Which is an example of the identity property of addition?

• 5 + 1 = 6
• 5 - 0 = 5
• 5 + 0 = 5
• 5 + 2 = 5

Which is an example of the identity property of multiplication?

• 8(0)=0

• 8(1)=1

• 8(1)=8

• 8+0 = 8