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Anonymous users2024-02-07By the column-vertical algorithm of addition, first look at the single digit, river + river = river, that is, itself + itself = itself, then it can be judged"River = 0"。From the thousand digits "long + long" to the 10,000 digits, it can be judged that the "long" may be the number 5,6,7,8,9, and the ten digits are "yellow + yellow = long", so the "long" is an even number, and the further judgment of "long" may be 6 or 8.
If it is 6 in length, it is 3 or 8 in yellow; 1. When "yellow" is 3, "river + river = 3" contradicts their sum as an even number.
2. When "yellow" is 8, "Jiang + Jiang + 1=8" contradicts their sum as an odd number.
Conclusion 1: Therefore, the length is not 6
If it is 8 in length, it is 4 or 9 in yellow; 1. When "yellow" is 4, from "river + river = 4", the river is 2 or 7.
Further, a. when "river" is 2, "4" contradicts "6" of "long + long = river = 16".
b. When "river" is 7, "7" is consistent with the "7" of "long + long + 1 = river = 17". At this point, Huang is 4
2. When "yellow" is 9, from "river + river + 1=9", the river is 4 or 9.
Further, a. when "river" is 4, "8" contradicts the "6" of "long + long = river = 16".
b. When "river" is 9, "9" contradicts the "7" of "long + long + 1 = river = 17".
Conclusion 2: The length is 8, the river is 7, the yellow is 4, and the river is 0, that is, there is 8740 + 8740 = 17480
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Anonymous users2024-02-06Firstly, the sum of the two rivers equals the river to determine that the river is equal to 0, and the length of the river is greater than the yellow, and second, according to the addition of the two rivers, it is obtained that the river is greater than or equal to 5. According to the sum of two yellows equal to the length or the length plus 10, the length is an even number. So the length can only be taken 6 or 8.
Three, when the length is equal to 6, the yellow can only be equal to 3 and the sum of the two rivers obviously cannot be 3, so the length can only be 8, and the yellow is equal to 4 because the river is greater than the yellow, so it will only be 7
So the answer is: long 8 rivers 7 yellow 4 rivers 0
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Anonymous users2024-02-05A digit plus itself is equal to itself can only be 0, river = 0
The length may be equal to 6,7,8,9,9 impossible,6 impossible,7 tried,Long = 8.
2 8 = 16, 6 + 1 = 7, Jiang is equal to 7
Yellow = 4
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Anonymous users2024-02-04River River = River, River 0
The long length has to be carried in place, so the length is 5
Yellow Yellow is long so the length is an even number is 6 or 8 Yellow is 3 or 4 Jiang + Jiang = Yellow or 10 + Yellow So Yellow is an even number 4 Jiang is 2 or 7 Long is 8 Long = 10 + Jiang So Jiang is 7
So the length is 8, the river is 7, the yellow is even, the river is 0
That's 8740 + 8740 = 17480
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Anonymous users2024-02-03First of all, it can be determined that the river is equal to 0 by adding the river and the river is equal to the river, and the length of the river is greater than the yellow, and second, according to the addition of the two long wants to carry it, it is obtained that the river is greater than or equal to 5. According to the sum of two yellows equal to the length or the length plus 10, the length is an even number. So the length can only be taken 6 or 8.
Three, when the length is equal to 6, the yellow can only be equal to 3 and the sum of the two rivers obviously cannot be 3, so the length can only be 8, and the yellow is equal to 4 because the river is greater than the yellow, so it will only be 7
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Anonymous users2024-02-021。The last numbers are all rivers. Because the single digit plus itself equals itself only 0, the river = 0
2。After the test length = 8
6+1=7, Jiang is equal to 7
4.。Yellow = 4Answer: 8740+8740=17480
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Anonymous users2024-02-01River River = River, River 0The long length has to be carried in place, so the length is 5Yellow Yellow long or 10 long;
It is inferred that: Chang 8, Jiang 7, Huang 4, River 0
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Anonymous users2024-01-31A digit plus itself is equal to itself can only be 0, river = 0
The length may be equal to 5, 6, 7, 8, 9,。5,7,9 is not possible because the long is even, it may be 6 or 8, assuming it is 6, and yellow may be 3+3 or 8+8. The length of the same mile is 8, and the yellow may be 4+4 or 9+9, and it is speculated that the length can only be 8
2 8 = 16, 6 + 1 = 7, Jiang is equal to 7
Yellow = 4
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Anonymous users2024-01-30The single digit plus itself is equal to itself can only be 0, river = 0
Long may be 5-9,9 impossible,5 impossible,6 impossible,7 can't even try,long = 8.
2 8 = 16, 6 + 1 = 7, Jiang is equal to 7
Yellow = 4
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Anonymous users2024-01-29A single digit plus itself equals itself can only be 0, so river = 0
Long may be equal to can't try, long = 8
2 8 = 16, 6 + 1 = 7, Jiang is equal to 7
Yellow = 4
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Anonymous users2024-01-28You can list the vertical type, starting from the river, only 0 + 0 0,
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Anonymous users2024-01-27The length is 8 and the river is 7
Yellow is 4 and the river is 0
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Anonymous users2024-01-26Experiment and logical judgment are to be made.
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Anonymous users2024-01-25It's easy to open your mind!
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Anonymous users2024-01-24I've made up this kind of question, so it's best to ask the teacher.
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Anonymous users2024-01-23The problem is transformed into "Yangtze River, Yellow River x2=1 River, Yellow River".
First of all, the river character is the best solution, and the single digit of the product is only determined by the single digit of the two factors. It means "river x2 = river", or "river x2 = 1 river". So only 0 in the number matches, so "river=0".
The problem is simplified to "Yangtze River Yellow x2 = 1 Yangtze River Yellow Length".
The length is the highest position, multiplied by 2 to advance by one place, indicating that the length is one of 5, 6, 7, 8, and 9. And the product is long as you are, and the product is an even number, so the length must be an even number. The length is therefore 6 or 8.
There are only two categories of cases, and it won't be a hassle to discuss them separately.
Length = 6, yellow is 3 or 8 (for the same reason, the unit of the product can only be determined by the unit of the factor).
Jiang = 2 or 3. Because the hundredth digit is 6, multiplying it by 2 can only give the even number in 1200 1398.
623；628；633；638。There are only these four numbers. Multiply by 2 to get: 1246; 1256；1266；1276。Neither.
Long = 8, Yellow = 4 or 9; Jiang = 6 or 7. There are 864; 869；874；879。Multiplying by 2 is 1728; 1738；1748；In line with the topic.
Hence long = 8;Jiang = 7;Yellow = 4River =
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Anonymous users2024-01-22From the column vertical first bureau algorithm of addition, first look at the single digit, river + river = river, that is, itself + itself = itself, then it can be judged"River = 0"。From the thousand digits "long + long" to the 10,000 digits, it can be judged that the "long" may be the number 5,6,7,8,9, and the ten digits are "yellow + yellow = long", so the "long" is an even number, and the further judgment of "long" may be 6 or 8.
If it is 6 in length, it is 3 or 8 in yellow; 1. When "yellow" is 3, "river + river = 3" contradicts their sum as an even number.
2. When "yellow" is 8, "Jiang + Jiang Zhe Charang +1=8" contradicts their sum as an odd number.
Conclusion 1: Therefore, the length is not 6
If it is 8 in length, it is 4 or 9 in yellow; 1. When "yellow" is 4, from "river + river = 4", the river is 2 or 7.
Further, a. when "river" is 2, "4" contradicts "6" of "long + long = river = 16".
b. When "river" is 7, "7" is consistent with the "7" of "long + long + 1 = river = 17". At this point, Huang is 4
2. When "yellow" is 9, from "no open river + river + 1 = 9", the river is 4 or 9.
Further, a. when "river" is 4, "8" contradicts the "6" of "long + long = river = 16".
b. When "river" is 9, "9" contradicts the "7" of "long + long + 1 = river = 17".
Conclusion 2: The length is 8, the river is 7, the yellow is 4, and the river is 0, that is, there is 8740 + 8740 = 17480
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