What is the single digit of 85 3 s plus 80 4 s? It s best to make a table

There are only 4 cases of mantissa p to the nth power of 3, 1, 3, 9, 7, and the law is that when n(mod)4=1, mantissa p=3; n(mod)4=2, p=9; n(mod)4=3, p=7; When n(mod)4=0, p=1Since 85mod4=1, p=3

In the same way, there are only 2 cases of the nth power mantissa p of 4, 4 and 6, and the law is that when n(mod)2=0, p=6; n(mod)2=1, p=4Since 80mod2=0, p=6

Summing up, p=9

ps: In the above calculation, n>=1

In addition, this algorithm can be extended, as long as the mantissa meets this condition, it can be applied, for example, the question is changed to"The mantissa of the sum of the product of 85 13 and the sum of 80 products of 5784", the result is the same.

In the case of the mantissa to the nth power of the number of p:

p=0, a, 0

p = 1, a, 1

p=2, four, 2, 4, 8, 6

p = 3, four kinds, 3, 9, 7, 1

p=4, two kinds, 4, 6

p = 5, a, 5

p = 6, a, 6

p=7, four kinds, 7, 9, 3, 1

p = 8, four, 8, 4, 2, 6

p=9, two species, 9, 1

Hello Integer Integer The single digit of the product is the single digit of the integer The single digit of the integer Multiply 85 3s.

The single digit is 5 and 3 The product of 5 and 3 is 15 and the single digit of 15 is 5

A: The single digit of the product of 85 3s is 5

The single digit is 5 and 3 The product of 5 and 3 is 15 The single digit of 15 is 5 Answer: The single digit of the product of 85 3s is 5

Hello, integer The single digit of the integer product is the single digit of the integer and the number of digits of the integer is 85. The number of digits multiplied by 3 is 5 and the product of 3 is 15. Answer: Multiply 85 by 3 digits to 5

Hello, integer The only digit of the integer product is the only digit of the integer The number of digits of an integer is 85. The number of digits multiplied by 3 is 5 and the product of 3 is 15. Answer: Multiply 85 by 3 digits to 5

Hello, integer A number of integer products is a digit of an integer The number of digits of an integer is 85. Multiply the number of digits by 3 to 5 and 3. Multiply the product of 5 and 3 to 15.

Multiply the number of digits by 15 to 5. Answer: Multiply the number of digits by 85 3 to 5.

Multiply the number of digits by 85 5 to 5.

Hello, integer The only number in the integer product is the only integer The number of digits in an integer is 85. The number of digits multiplied by 3 is 5 and the product of 3 is 15. Answer: Multiply 85 by 3 digits to 5

Hi integer The number of digits of the product of an integer is the number of digits of an integer The number of digits of an integer is 3 times 85 The number of digits is 5, the product of 35 and 3 is 15 The number of digits of 15 is 5 to: 85 The number of digits of the product of 3 is 5

Hello integer The number of digits of the product of the integer is the number of digits of the integer The number of digits of the integer is 85 The number of triples is the product of 5 and 3 The product of 5 and 3 is 15 The number of digits of the 15 digits is 5 a: 85 The number of digits of the product of the 3 phase is 5

The single digit of the product looks at the single digit of the multiplied number. That is, 5*5*5. The final answer is 5.

The period problem of mathematics, the period is 5

85 5 surplus 0

【Answer】Therefore, the answer is: three.

Analysis] The written calculation of multiplying two digits by one digit.

1. If these numbers can be repeated, it will be 888*8=7104!

Second, if these numbers cannot be repeated, this must be counted like that! If you want to connect the order of four digits, try to arrange the three small values from largest to smallest and multiply them by a maximum value, or the three large values from largest to smallest multiplied by a minimum value. It's 765*8 or 876*5, which is bigger, and you can choose whichever is bigger!

Because if you choose a combination of numbers in the middle, you will get a value that is the lesser of the two numbers. And it turns out that 765*8 6120, and 876*5=4380, the maximum product is 765*8. I think that if the number is small enough for this kind of problem, such as three digits are only hundreds, hundreds and hundreds are not much different, multiply by a single digit, then the single digit should be larger, so multiply by its large multiple to get the largest value.

The above is my personal opinion, don't spray if you don't like it.

Let the correct product be x, then according to the meaning of the problem, and the wrong product is x+70 according to the meaning of the problem, you can list the equation according to the meaning of the problem:

x+70=8*x

Move x to the right of the equation and get:

70=7*x

then accompany Jane to roll x=10

So, the correct product is 10

Summary. Hello, for you the column is as follows: 8838 (10-1)=8838 9=982, a three-digit number multiplied by 10The resulting product is 8838 more than the original three-digit numberIt turns out that this three-digit number is what it is.

Hello, for you, the column formula is as follows: 8838 (10-1)=8838 9=982, so it turns out that this three-digit number is 982

Check: 982x10=98209820-982=8838

The four-digit product is.

If the safeguard product is four digits, you need to expand the data.

How to calculate. How to expand.

For example, 82 13 1066

This is a fill-in-the-blank question.

Provide the following questions in **fill in the blanks**, I'll take a look.

82 times 3 If the product is a four-digit number, the maximum is a few parentheses, your question is not comprehensive, where are the parentheses of your title.

Is the parentheses in front of or after the 3?

If the parentheses are after three, the minimum is zeroed.

Maximum nine days nine 82 39 = 3198

I'd appreciate you elaborating on the situation.

82×3＝246

The product of 82 times 3 cannot be a four-digit number, then the maximum is 246.

I used the VBA program of Excel to exhaustively find the combination 84*763=64092 is the largest product, there are a total of 120 combinations, as follows.