My Favourite Community Helper 22
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20 Listen and read. Then answer.
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Miss Tavlor is our school bus driver and she is my
ovourite community helper because she is the
menclest person t know She always has the biggest
smile on her face
Miss Tavior is a very busy woman. She gets up early
every day to clean the school bus and check the tyres.
Then she has to go around town and pick us up for
school from six different bus stops. She always plays
music for us on our way to school
. Her favourite singer is Taylor Swift
Miss Toler loves music and in her free time she is a DJ at the local radio station! She calls
herser ou faleShe also loves singing and she is the lead singer in an all-girls band!
with her friendly smile and her love of music. Miss Taylor is the best bus driver I know! I like
Do
By Susan Smith
2
07 Wars Miss Tavorsicb?
3) Who is her favourite singer?
23
Так мы придём к тому, что 7 фруктов - мало (все могут оказаться яблоками) и надо вытащить 8 фруктов. Тогда при самом невезучем варианте у нас всё равно получится 7 яблок и 1 мандарин.
ответ: 8
Признак делимости на 3: Нсли сумма цифр числа кратна 3, то число делится на 3.
Признак делимости на 9: Если сумма цифр числа делится на 9 без остатка, то число делится на 9.
Проверяем данные числа по признакам делимости:
72 => 7+2=9 - кратно 3 и 9 (9/3=3; 9/9=1)
312 => 3+1+2=6 - кратно 3, не кратно 9 (6/3=2; 6/9=1/3)
483 => 4+8+3=15 - кратно 3, не кратно 9 (15/3=5; 15/9=1.666..6)
522 => 5+2+2=9 - кратно 3 и 9
913 => 9+1+3=13 - не кратно ни 3, ни 9 (13/9=1.444..4; 13/3=4.333..3)
1197 => 1+1+9+7=18 => 1+8=9 - кратно 3 и 9;
2093 => 2+0+9+3=14 - не кратно ни 3, ни 9 (14/3=4.666..6; 14/9=1.555..5)
ответ: Делятся на 9: 72; 522; 1197.
Делятся на 3 и не делятся на 9: 312; 483