đố m.n số nào chia hết cho từ 1-30
:))) ai trl đc tui tick choa:)))
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Pho is one of my favorite foods. Pho is the most popular and special dish in our country, Vietnam. There are two main kinds of Pho: Pho with beef and Pho with chicken. Pho is served in a bowl with a specific cut of white rice noodles in clear beef broth, with slim cuts of beef (steak, fatty flank, lean flank, brisket). Chicken Pho is made using the same spices as beef, but the broth is made using only chicken bones and meat, as well as some internal organs of the chicken, such as the heart, the undeveloped eggs and the gizzard. I always enjoy a bowl of hot and spicy Pho for breakfast. Mornings are a special time for pho in Vietnam. I love Pho and I can eat it every morning without boring.
Favorite drink: Vietnam is a tropical country. So there are many kinds of foods and drinks to choose. I like all kinds of fruits such as avocado, mango, orange, apple, etc. But the drink I love most is avocado smoothie. This healthy smoothie is perfect for a breakfast, a quick snack, or whenever I need a healthy boost. Avocados are high in fat, healthy type of fat. They also contain fat-soluble vitamin E, vitamin C. Especially, avocados are an excellent source of antioxidant carotenoids like alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein and zeaxanthin that may help slow aging, prevent certain cancers, heart disease, lose weight and improve your skin tone. Let’s enjoy our instant breakfast avocado smoothie and have an awesome day!
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Muốn chia hết cho 3 thì tổng các chữ số phải chia hết cho 3 ; có :
1 + 2 + 3 = 6
2 + 3 + 4 = 9
Từ một biểu thức trên có thể lập được : 1 x 3 = 3 ( số )
Nhưng nhờ tính chất lặp lại : 3 + 3 + 3 và 1 + 1 + 1 ; 2 + 2 + 2 ; 4 + 4 + 4 nên có thêm 6 số nữa
Có tất cả : 3 x 2 + 6 = 12 số
đ/s : 12 số
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Chu sô hang tram co 4lua chon
Chu so hang chuc có 4lua chon
Chu so hang don vi co 4 lua chon
Vay so so lap duoc la:
4.4.4=64 so
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123;124;132;134;142;143;213;214;231;234;241;243;312;314;321;324;341;342.
=> ta lập đc 18 số
bạn bảo phương trả lời sai rùi ~.~ ~.~
124 , 134, 142 , 148 , 214 , 234 , 241 , 314 , 341 ko chia hết cho 3 nha ban ~.~
những số nào có tổng các chữ số chia hết cho 3 thì chia hết cho 3 nhà bn , 9 cũng như vậy ~.~
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321 ; 324 ; 123 ; 231 ; 432 ; 423 ; 234 ; 243 ; 342 ; 132 ; 123 ; 312 ; ...
đúng ko bn ?
thank trước !!!
^.^