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a)Số chia là :
( 6185 - 29 ) : ( 75 + 1 ) = 81
Số bị chia là :
6185 - 81 = 6104
Đáp số : số chia : 81
số bị chia : 6104
b) Số chia là :
( 2324 - 12 ) : ( 67 + 1 ) = 34
Số bị chia là :
2324 - 34 = 2290
Đáp số : số chia : 34
số bị chia : 2290
a,Số chia là : ( 6185 - 29 ) : ( 75 + 1 ) = 81
Số bị chia là : 81 x 75 + 29 = 6104
b,Thương là : ( 2324 - 12 ) ; ( 67 + 1 ) = 34
Số bị chia là ; 34 X 67 + 12 = 2290
A = 1 - 2 + 3 - 4 +...+ 43 - 44 + 45
=> A = (1 - 2) + (3 - 4) +....+ (43 - 44) + 45
=> A = -1 + (-1) +....+ (-1) + 45
=> A = (-1).22 + 45
=> A = -22 + 45
=> A = 23
20 vì :
Khi - cộng thì 2 số có cùng một tích
Vậy thì ra thôi
2 + 22 + 23 + 24 + 25 + 26 + 27 + 28 + 29
= (2 + 22 + 23) + (24 +25 + 26) +(27 + 28 + 29)
= (2 + 22 + 23) + 23(2 + 22 + 23) + 26(2 + 22 + 23)
= 14 + 23.14 + 26.14
= 14(1 + 23 + 26) chia hết cho 7 (ĐPCM)
Books have been one of my best friends which have supported me in every step of my life. And the one that I have the deepest impression on is “The miracle of the Namiya general store” .
The book is about three delinquents who were running away from their wrongdoings then accidentally found an old house and hid there for the night. The house turned out to be an abandoned general store where people could seek advice for their troubles by leaving a letter in the mailbox. Miracle happened when the time line somehow switched and letters from 30 years ago were delivered to them. Although none of them ever seriously considered others’ problems, something from the inside urged them to write responses to the troubled people, on behalf of Namiya – the old owner.
“ Miraculous” is exactly how I want to describe this book. No need for dogma lessons, it presents the value of kindness and compassion through different short stories that are linked perfectly together and leaves me hopeful about human nature. The past, present and future are combined flexibly, which creates many a surprise to me. How did the letters change people’s lives? Could the delinquents - whose past was covered by darkness – be awoken and open their hearts to heal the grieving souls? The story presents an open ending but I have got the answer of my own. To any book lovers especially those who have interest in soothing and touching stories, “The miracle of the Namiya general store” by Higashino Keigo is the one that should not be missed.
TƯỞNG GÌ KHÓ , THAM KHẢO NHA BẠN