Addition Properties
Estimate Sums
Two-digit Addition
Three-digit Addition
Add Greater Numbers
100
Identify the property. 0 + 10 = ?
What is the Identity property of addition.
100
Estimate each sum using rounding. 76 + 12
What is 90
100
75 + 12
What is 87
100
156 + 255 =?
What is 411.
100
3,345 + 654 = ?
What is 3,999
200
Find the sum. Identify the property. 11 + 2 = 2 + 11 =
What is 9. Commutative property of addition
200
Estimate each sum using rounding. 52 + 21
What is 70
200
53 + 25
What is 78
200
$355 + $156 =
What is $511
200
$3,205 + $1,709
What is $4,914
300
Find the missing number. Identify the property. (18 + ? ) + 4 = 25 18 + (? + 4) = 25
What is the Associative Property of Addition
300
Estimate each sum using rounding. 15 + 35
What is 60.
300
In two hours, 47 trucks and 49 cars passed through a tunnel. How many vehicles altogether passed through?
What is 96 vehicles.
300
841 + 925 =
What is 1,766
300

Mrs. Roth's car costs $7,681. Mr. Randall's car costs $1,406 . How much do their cars cost altogether?

What is $9,087

400
2 + 4= 6 and 4+2= 6 is an example of the ____?____.
What is the Commutative Property of Addition.
400
Estimate each sum using rounding. 851 + 951
What is 1,900.
400

Find the missing digit. 87 + 9? = 186

What is 9.

400
Find each missing number. Identify the property. 240 + 679 =? 679 + 240 =?
What is 919. The commutative property of addition.
400

7638+3295

10,933

500
The _______? states that grouping the addends does not change the sum.
What is Associative Property of Addition
500

Estimate each sum using rounding. 19 + 19 + 94 +94

What is 220.

500
Find the missing digit. 131 + 4?6 = 557
What is 2.
500
Use the digits 3, 5, and 7 to make two three digit numbers. Use each digit one time in each number. Write an addition problem that would make the least sum and the greatest sum possible.
What is 357 + 357 = 714 and 753 + 753 = 1,506
500

7598-3256

What is 4,342

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