From 8,600,000, 100,000 to 10 million

8.6 million, 8.7 million, 8.8 million, 8.9 million, 9 million, 9.1 million, 9.2 million, 9.3 million, 9.4 million, 9.5 million, 9.6 million, 9.7 million, 9.8 million, 9.9 million, 10 million.

A digit refers to the position occupied by each digit in a number. The digits of the integer part are from the right, and every 4 digits are one level, and each level includes single digits, ten digits, hundreds of digits and thousands of digits, indicating how many ones; The 10,000 level includes 10,000, 100,000, million, and 10,000,000, representing how many tens of thousands.

The 100 million level includes 100 million, 1 billion, 10 billion, and 100 billion, representing how many billions ......The digits of the decimal part from left to right are tenths, percentiles, and thousandths. Indicates how many tenths.

One percent.

1. One in 1,000.

The number of digits of a natural number is called the number of digits, for example, the number 9, which contains only one digit, so 9 is a single digit; The five-digit number 12345 contains five digits: one, ten, hundred, thousand, and ten thousand.

Digital meaning

The decimal notation is characterized by "full 10 into one". That is, every 10 units of a certain unit make up a higher unit adjacent to it. That is, 10 ones are called "ten", 10 tens are called "hundreds", 10 hundred are called "thousands", and 10 thousands are called "ten thousand".

One (one), ten, hundred, thousand, thousand, one million, one million (trillion), ten million, billion, billion, ten billion, hundreds of billions, ......, are all units of counting.

Digit refers to the writing of numbers, the numbers are arranged side by side in a horizontal column, and a number occupies a position, and these positions are called digits. From the right end, the first digit is "single digit", the second digit is "ten", the third digit is "hundred", the fourth digit is "thousand", the fifth digit is "ten thousand", and so on. This shows that the concepts of counting units and digits are different.

However, the relationship between them is very close, "4" in the hundredth place, it means 4 hundreds, "7" in the ten place, it means 7 tens, and "5" in the single place, it means 5 ones.

The above content refers to Encyclopedia - Digital.

How many counts? From 8,600,000, 100,000,000 counts, count to 10 million, that is, count from 86 to 100, a total of 100-86 = 14 times.

From 10 million to 40 million count 300 times, from 40 million, 10 million to 100 million, that is, 4 to 10, 10-4 = 6 times.

So the total number is 14 + 6 + 300 = 320 times.

The first question: 8.7 million, 8.8 million, 8.9 million, 9 million, 9.1 million, 9.2 million, 9.3 million, 9.4 million, 9.5 million, 9.6 million, 9.7 million, 9.8 million, 9.9 million, 10 million.

The second question: 50 million, 60 million, 70 million, 80 million, 90 million, 100 million.

As follows:

Nine hundred and one thousand.

Nine million two hundred thousand.

Nine million three thousand.

Nine million four hundred thousand.

Nine and a half million.

Nine million six million.

Nine million 7,700,000.

Nine million 800 thousand.

Nine million nine hundred thousand.

Ten million. <> numbers:

Nine million, nine million ,100,000, 9,200,000, 9,300,000, 9,400,000, 9,500,000, 9,600,000, 9,700,000,900,000, 10 million.

Ten million. 100000 100 is equal to 10000000.

The rules of multiplication:

1) Digit alignment, from the right, use the number on each of the second factor to multiply the first factor, multiply to which digit you want, and the end of the number will be aligned with which digit of the second factor.

2) Then add up the numbers that you have multiplied several times.

Multiply the number with 0 at the end of the integer: you can first multiply the numbers before 0, and then see how many zeros there are at the end of each factor, and add a few zeros to the end of the multiplied number).

The rules of multiplication:

1. The first digit is the same, and the sum of the two mantissa numbers is equal to 10 The two-digit multiplication method: ten digits plus 1, the resulting sum is multiplied by the ten digits, and the number is the front product, and the single digit is multiplied, and the number is the back product, and no ten digits are made up with 0.

2. The first digit is the same, and the mantissa is not equal to 10 two-digit multiplication method: the two first digits are multiplied (that is, the square of the first digitude), the number is taken as the front product, the sum of the two mantissa numbers is multiplied by the first place, the number is taken as the middle product, the full ten is one, the two mantissa are multiplied, and the number is taken as the back product.

3. The multiplier is the same as the first and last of the multiplier, and the sum of the first and last digits of the multiplier is 10: the first digit of the multiplier is added to 1, and the sum obtained is multiplied by the first place of the multiplier, and the number is the first product, and the two mantissa numbers are multiplied together, and the number is the back product, and there are no ten digits with 0.

4. The sum of the first and last digits of the multiplier is 10, and the multiplication method of the first and last digits of the multiplier is the same: similar to the method of helping 6. The product of the two first digits multiplied plus the single digit of the multiplier is used as the first product, and the two mantissa numbers are multiplied by the number as the back product, and there is no ten digits to make up 0.

100,000,000 counts, 100 times is 10 million;

So the answer is: 10 million

100,000,000 counts, 100 times is 10 million;

From the analysis, it can be seen that the number of 100,000 lands can be counted from 700,000 to 1 million;

So the answer is:

Answer: Analysis:

Nine million six hundred thousand nine million nine hundred seventy thousand nine million nine million ten million.

500,000, 600,000, 700,000, 800,000, 900,000, 1 million, counting to one million is the 6th acre;

So the answer is: 6

63.8 million, 63.9 million, 64 million, 64.1 million, 64.2 million, 64.3 million, 64.4 million, 64.5 million.

The process of unraveling the cavity is as follows:

1) Starting from 63.8 million, 100,000 is on the basis of 63.8 million + 100,000, and then adding another 100,000 on top of the previous result? , and so on.

2) 63.8 million, 63.9 million, 64 million, 64.1 million, 64.2 million, 64.3 million, 64.4 million, 64.5 million? Wait a minute.

100,000,000 counts, 10 times is 1 million; 100 million and 100 million, dozens of times is a billion;

So the answer is: ten, billion

100,000,000 lands, from 700,000 to 1,000,000. It counts like this: 700,000, 800,000, 900,000, 1 million.

One hundred thousand is a unit of quantity, i.e., ten thousand, one hundred thousand, a real number. When counting in units of "100,000", "100,000" remains unchanged, only the number before "100,000" is changed. For example, one hundred thousand (one hundred thousand), two hundred thousand, three hundred thousand.

1,200,000,000, 9,900,000 and so on. There are more than 100,000 units, there are millions, tens of millions, and so on.

Quantity refers to the number of things. It is an abstract expression of the quantity of things in real life. Since ancient times, in daily life and production practice, people have needed to create some language to express the amount of things (events and objects).

The units of quantity commonly used in modern times are:

One: One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Zero.

Ten: 1x10 1 (1 times 10 to the power of 1).

Hundred: 1x10 2 (1 times 10 to the 2nd power).

Thousand: 1x10 3 (1 times 10 to the 3rd power).

10,000: 1x10 4 (1 times 10 to the 4th power).

100 million: 1x10 8 (1 times 10 to the 8th power).

From the analysis, it can be seen that the number of 100,000 lands can be counted from 700,000 to 1 million;

So the answer is: