6 и 7 пожалуйста прошу вас спасибь

                                  Входной контроль.1 страница.
                                             №1
а)0
                                             №2
а)1
                                             №3

394,395,396,397,398,399,400,401,402,403,404,405,406,407,408.
                                             №4
258=200+50+8
904=900+4
360=300+60
799=700+90+9
                                             №5
589-592                199-202              440-443
600-603                 997-1000            209-212 
                                             №6
1)357,645,654,729,928,935,953.
                                             №7
630
---------
                                             №8

3)917-269 меньше чем 917-268
                                             

=19,704.9520 ......................

V(скорость)=S(путь)/T(время)

Х-ширина,3хсм-длина
2(х+3х)=320
8х=320
х=320:8
х=40 см -ширина
40*3=120см длина