Show:
multi digit addition
Doubles
3-digit addition w/regrouping
3-digit addition w/o regrouping
Expanded Form
200

16+8

24

200

40+40

80

200

529+366

895

200

418+351

769

200

400+50+6

 456

300

26+45

71

300
90+90

180

300

813+387

1,200

300

436+243

679

300

827

800+20+7

400

47+47

94

400

200+200

400

400

136+724

860

400

820+369

1,189

400

500+90+3

593

500

56+72

128

500
600+600

1200

500

352+469

821

500

520+369

889

500

867

800+60+7

600

75+57

132

600

900+900

1,800

600

947+176

1.123

600

427+352

779

600

608

600+0+8