Addition Properties and Subtraction Rules

Addition Property:

Commutative Property: The order that numbers are added does not change the sum.

Which is an example?

• 5+1 = 6 and 1+5 = 6

• (1 +5) + 3 = 9 and 1 + (5 + 3) = 9

• 5-0 = 5 and 5+0 = 5

• 2+3 = 5 and 1+4 = 4

Addition Property:

Commutative Property: The order that numbers are added does not change the sum.

Which is an example?

• 5+5 = 10 and 4+6 = 10

• (1 +5) + 3 = 9 and 1 + (5 + 3) = 9

• 5+4 = 9 and 4+5 = 9

• 2+3 = 5 and 1+4 = 4

Addition Property:

Associative Property: The way in which numbers are grouped in parenthesis when added does not change the sum.

Which is an example?

• 5+5 = 10 and 4+6 = 10

• (1 +5) + 3 = 9 and 1 + (5 + 3) = 9

• 5+4 = 9 and 4+5 = 9

• 2+3 = 5 and 1+4 = 4

Addition Property:

Associative Property: The way in which numbers are grouped in parenthesis when added does not change the sum.

Which is an example?

• 5+5 = 10 and 4+6 = 10

• 1+5+3 = 9 and 1+3+5 = 9

• (5+4)+2 = 11 and 5+(4+2) = 11

• 2+3 = 5 and 1+4 = 4

Addition Property:

Identity Property: The sum of any number and 0 is the number.

Which is an example?

• 5+5 = 10 and 4+6 = 10

• 5-0 = 5

• 5-5 = 0

• 5+0 = 5

Addition Property:

Identity Property: The sum of any number and 0 is the number.

Which is an example?

• 5-0 = 0

• 5-0 = 5

• 5 = 5+0

• 5+5 = 10

Subtraction Rule:

When you subtract 0 from any number, the result is the number.

What is an example?

• 5-0 = 0

• 5-0 = 5

• 5 = 5+0

• 5+5 = 10

Subtraction Rule:

When you subtract 0 from any number, the result is the number.

What is an example?

• 5-5 = 0

• 5+0 = 5

• 5 = 5-0

• 5+5 = 10

Subtraction Rule:

When you subtract any number from itself, the result is 0.

What is an example?

• 5-5 = 0

• 5+0 = 5

• 5 = 5-0

• 5+5 = 10

Subtraction Rule:

When you subtract any number from itself, the result is 0.

What is an example?

• 5+5 = 0

• 5 = 5+0

• 0 = 5-5

• 10-5 = 5