Show:
Addition Regrouping
Addition Regrouping
Subtraction Regrouping
Subtraction Regrouping
100

68 + 36 =

104

100

28 + 49 =

77

100
92 - 67 = 

25

100

27 - 9

18

200

92 + 19 = 

111

200

75 + 68 =

143

200

46 - 28 =

18

200

29 - 18 =

11
300

108 + 16 =

124

300

216 + 399 =

615

300

527 - 338 =

189

300

273 - 92 =

181

400

396 + 584 = 

980

400

880 + 120 =

1,000

400

997 - 448 =

549

400

715 - 428 =

287

500

1,213 + 128 =

1,341

500

3,950 + 2,130 =

6,080

500

625 - 158 =

467

500

975 - 586 =

389