Addition Properties
Identity, Commutative or Associative
23 + 0 = 23
Identity
1 more than 436
437
68 + 53 =
121
Estimate.
54 + 27 =
80
Cole watched a 25 minute video before school. He watched a 43 minute video after school. How many minutes did Cole spend watching a video in all?
68 minutes
Identity, Commutative or Associative
5 + 4 = 9
4 + 5 = 9
Commutative
100 more than 2,398
2,498
315 + 254 =
569
Estimate.
78 + 34 =
110
Sophia has 67 beads to make a necklace. Her mom gave her 52 more beads. ABOUT how many beads does she have in all?
120 beads
Identity, Commutative or Associative
0 + 487 = 487
Identity
1,000 more than 5,672
6,672
687 + 593 =
1,280
Estimate.
436 + 272 =
700
Trinity read 123 pages on Monday night. She read 178 pages on Tuesday night. How many pages did she read altogether?
301 pages
Identity, Commutative or Associative
(5 + 2) + 3 = 5 + (2 + 3)
Associative
625 + _____ = 635
10
578 + 46 =
624
Estimate.
785 + 349 =
1,100
Nate has 236 baseball cards. Kylan has 356 baseball cards. ABOUT how many cards do the two boys have altogether?
600 cards
Identity, Commutative or Associative
3 + 4 = 4 + 3
Commutative
4,785 + _____ = 4,885
100
3,746 + 4,529 =
8,275
893 + 276 =
1,200
The pumpkin patch sold 467 pumpkins on Friday. They sold 658 pumpkins on Saturday. How many pumpkins did they sell in all?
1,125 pumpkins