4 класс. задачи ** смекалку. номер 1 и 2

Question

4 класс. задачи на смекалку. номер 1 и 2

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Answer 1

99:9+9=20          99*9-9*9=810                                                                                                          999+9=1008                                                                                             (99-9):9=10                                                                                                                 (55-5)*(5*5-5)=1000                                                                                                     9:9+999=1000