Запиши число которое состоит из 720 десятков

1 десяток=10 720десятков = 720*10=7200

7200 700 десятков это 7000                                                               7 десятков=70 20 десятков это 200                                                                 70 десятков =700                                                                                                700десятков =7000                                                                                                2 десятка =20                                                                                               20 десятков =200                                                                                             200 десятков=2000