My Math- Chapter 2 Vocabulary

Associative Property of Addition

• The grouping of addends does not change the sum

• The grouping of addends changes the sum

• The order you add digits changes the sum

• The parentheses change and it changes the sum

Tags

CCSS.1.OA.B.3

Associative Property of Addition

• 2 + 5 + 6=13

• (12+14)+15=41

• (10+4)+6=10+(4+6)

• 5+6+3=3+6+5

Tags

CCSS.1.OA.B.3

CCSS.1.OA.D.7

Commutative Property of Addition

• The order doesn't matter.

• The order in which two numbers are added does change the sum.

• The order moves around to change the sum.

• The order in which two numbers are added does not change the sum.

Tags

CCSS.1.OA.B.3

associative Property of Addition

• 27-15=12

• 12+15=27

• 12+15=15+12

• 12+12=12+12

Tags

CCSS.1.OA.B.3

equation

• an addition problem that has a sum

• a sentence that contains and equals sign

• a word that has an equals sign

• a paragraph that has an equals sign

Tags

CCSS.1.OA.D.7

CCSS.1.OA.D.8

Identity Property of Addition

• For any number with a comma and place value

• For any number, zero plus that number is the number.

• For any number, the sum plus the sum to get a sum

• For any number, with a division sign

Unknown

• An amount that has not been identified with numbers

• An amount that has not been identified

• An amount that has not been identified with an equal sign

• An amount that has been identified

Tags

CCSS.1.OA.D.7

CCSS.1.OA.A.1

CCSS.1.OA.D.8

CCSS.1.OA.B.4

Variable

• a letter or symbol used to represent an unknown quality

• a number that equals another number

• a symbol that equal another symbol

• an addition problem with all the numbers

Tags

CCSS.1.OA.A.1