Composición y descomposición de números
1- 890
__________________________________
2- 670
__________________________________
3- 5c-8d-3u_________________________________ 4- 999
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5- 3c-5d-1u_________________________________ 6- 249
__________________________________
7- 8c-3d-8u__________________________________ 8- 7c-7d-7u__________________________________ 9- 9c-5d-3u__________________________________ 10- 666
___________________________________
11- 528
___________________________________
12- 8d-3u ____________________________________ 13- 123
___________________________________
14- 321
___________________________________
15- 3c-3d-5u__________________________________
Antecesor y sucesor:
1- __________998__________ 2- __________652__________ 3- __________720__________ 4- __________174__________ 5- __________222__________ 6- __________871__________ 7- __________500__________ 8- __________600__________ 9- __________345__________ 10- __________408__________ 11- __________400__________ 12- __________501__________ 13- __________399__________ 14- __________999__________ 15- __________879__________