Add and Subtract Whole Numbers

The order in which we add numbers won't change the sum.
Ex: 25+12 = 12+25 

• Associative Property of Addition
• Commutative Property of Addition
• Identity Property of Addition 
• Adding rules

Tags

CCSS.1.OA.B.3

The amount that has not been identified.  

• unknown
• question
• variable
• equation

Tags

CCSS.6.EE.B.6

A sentence with an equal sign to show that two expressions are equal.  

• variable
• unknown
• equation
• difference

Tags

CCSS.6.EE.A.2C

The grouping of addends won't change the sum. Ex: 5 + (2+4) = (5+2) + 4 Hide answers

• Associative Property of Addition 
• Commutative Property of Addition
• Identity Property of Addition 
• Addition rules

Tags

CCSS.1.OA.B.3

A letter or symbol used to represent an unknown quantity.  

• difference
• variable
• unknown
• picture

Tags

CCSS.6.EE.B.6

The first number in a subtraction sentence; The amount from which we are subtracting.  

• minuend
• difference
• addend
• subtrahend

Tags

CCSS.5.NBT.B.6

CCSS.6.NS.B.2

The number that is subtracted from another number.  

• minuend
• subtrahend
• addend
• difference

When you add 0 to any number, that number doesn't change.
0+100 = 100 

• Commutative Property of Addition 
• Identity Property of Addition 
• Addition rules
• Associative Property of Addition

Tags

CCSS.1.OA.B.3

The answer to a subtraction problem.  

• product
• sum
• quotient
• difference

Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5