3 Digit Addition
3 Digit and 4 Digit Addition
Rounding Addition to 10's
Rounding Addition to 100's
Addition Properties
100

   144

+ 232

376

100

   549

+ 320

869

100

   54

+ 76

50 + 80 = 130

100

   2,312

+ 4,587

2,300 + 4,600 = 6,900

100

Identity Property, Commutative Property, Associative Property are all __________ properties.

Addition

200

    444

+ 237

681

200

   742

+ 249

991

200

   149

+ 232

150 + 230 = 380

200

  3,458

+ 5,129

3,400 + 5,100 = 8,500

200

4,500 + 0 = 4,500 is an example of _____ property

Identity

300

   476

+ 185

661

300

856 + 573

1,429

300

   455

+ 328

460 + 330 = 790

300

4,793 

+ 3,548

4,800 + 3,500 = 8,300

300

4 + 2 = 6

2 + 4 = 6 is an example of _____ property

Commutative

400

678 + 195

873

400

   1,476

+ 3,789

5,265

400

   1,454

+ 3,721

1,450 + 3,720 = 5,710

400

4,950

+ 2,349

5,000 + 2,300 = 7,300

400

(2 +4) + 6 = 12

2 + (4+6) = 12 is an example of ____ property

Associative

500

574 + 458

1,032

500

   4,732 

+ 3,785

8,517

500

   4,386

+ 5,134

4,390 + 5,130 = 9,520

500

4,550 + 4,952

4,600 + 5,000 = 9,600

500

Give an example of each property and their name.


Answers will vary.

432 + 0 = 432 = identity

3+4 = 4+3 = commutative

(1+2) + 3 = 1 + (2+3) = associative

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