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 more than Mrs. Roth's car. How much do their cars cost altogether?
What is $16,768.
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
Find the error. 10, 856 +84, 498 _________ 94, 254
What is The hundreds column should have a 3 because they forgot to regroup after the tens.
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
Use the digits 1, 2, 3, 4, 5, 6, 7, 8, 9 to create two five-digit numbers who sum is greater than 150,000. You can only use the digits 9, 8, and 7 once.
What is 164,197
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