Show:
Subtraction (without regrouping)
Subtraction (with regrouping)
Addition (with and without regrouping)
Multiplication 1
Multiplication 2
100

  45

- 23

22

100
  456

- 248 

208

100

   53

+ 28 

81

100

1 x 9

9

100

3 x 6

18

200

  86

- 46

40

200

  853

- 108 

745

200

   353

+ 228

581

200

2 x 5

10

200

7 x 3

21

300

  379

- 143

236

300

  672

- 438

234

300

   667

+ 142

809

300

5 x 3

15

300

8 x 4

32
400
  987

- 533

454

400

  804

- 542

262

400

   425 

+ 364

789

400

10 x 2

20

400

7 x 6

42

500
  2875

-   642


2,233

500
 2573

-  385

2,188

500

   803

+ 169

972

500

4 x 3

12

500

8 x 9

72