Addition Properties
What addition property is used:
Commutative or Identity
5 + 35 =_____
35 + 5 =_____
Commutative
Round to the nearest 10.
67
70
What is another word for the "Answer" in an addition problem?
Sum (or unknown)
Add 10 more:
58
68
345+460=
805
What addition property is used:
503+ 0=_____
Identity
Round to the nearest 100.
534
500
What are the numbers being added together in an addition problem to find the sum?
addends
Add 100 more:
479
579
1,453+2,237=
3,690
What addition property is used:
(4 +1) + 25 =_____
Associative
Find the nearest estimate for 982.
1,000
Which addition property is used :
3 + 0 = _____
Identity, Communitive, or Associative
Identity
(zero doesn't change IDENTITIES in addition! )
add 100 more:
1,405
1,505
$1,287+ $5,242=
$6,529
Write an addition sentence that shows the IDENTITY property.
1+0=1
any problem that adds 0!
Round to the nearest hundreds.
234 + 569=_______
200+600=800
What addition property is used:
4 + 5 =_____
5 + 4 =_____
Communitive
(numbers COMMUTE to a new location)
add 1,000 more:
5,690
6,690
6,789+2,578=
9,367
What is the first step to complete when solving a problem using the ASSOCIATIVE property?
Add inside the parenthesis first!
3 + (10+5) = 18
+497 -------
+500 = 700
What addition property is used:
3 + (6 + 6)=_______
Associative
Add 100 more:
7,804
7,904
7,453+2,648=
10,101