The document contains mathematical equations and calculations. It begins with setting up the equation 123x54 and proceeds to work through the steps to solve for the answer. It ultimately calculates the solution as 6642.

1. 2 1 x 1 3
=

2. 2 1 x 1 3
=

3. 2 1 x 1 3
=

4. 2 1 x 1 3
=

5. 2 1 x 1 3
=

6. 2 1 x 1 3
=

7. 2 1 x 1 3
=

8. 2 1 x 1 3
=
2 3

9. 2 1 x 1 3
=
6
+
1
2 3

10. 2 1 x 1 3
=
2 7 3

11. 2 1 x 1 3
=
273

12. 2 1 x 1 3 =
273

13. 123x54=

14. 1

15. 1
2

16. 1
2
3

17. 1
2
3
5

18. 1
2
3
4
5

19. 1 2 123x54
3
4
5

26. 12

27. 8
12

28. 4
8
5
12
10
15

29. 4
8
5
12
10
15

30. 4
8
5
12
10
15

31. 4
8
5
1 2
10
15 +

32. 4
8
5
2
10
16

33. 4
8
5
2
10
16

34. 4
8
5
2
10
16

35. 4
8
5
2
10
16+8=24

36. 4
8
5
2
10
24

37. 4
8
5
2
10
2 4

38. 4
8
5
2
10
2 4

39. 4
8
5
2
10+2=12
4

40. 4
8
5
2
12
4

41. 4
8
5
2
12+4
4

42. 4
8
5
2
16
4

43. 4
8
5
2
1 6
4

44. 4
8
5+1
2
6
4

45. 4
8
6
2
6
4

46. 123x54=6642
6 2
6 4