Запиши число которое состоит из 720 десятков

1 десяток=10720десятков = 720*10=7200

7200700 десятков это 7000                                                               7 десятков=7020 десятков это 200                                                                 70 десятков =700                                                                                               700десятков =7000                                                                                               2 десятка =20                                                                                              20 десятков =200                                                                                            200 десятков=2000