What is the understanding of 1 and 1 100 million?

10 10 thousand is 100 thousand? 100000 is 1 million? 1010 million is10 million? 10 10 million is 100 million.

2. How to read numbers within 100 million?

Summary? (1), read from the high bit? Read layer by layer.

(2) Ten thousand series should be read according to the reading method of single series? Add another 10 thousand words after it.

No matter how many zeros there are at the end of each level, don't read them. Do other numbers have a "zero" or several consecutive "zeros"? Read only a zero.

3. How to write the number within 100 million?

Summary? (1), from advanced writing? Write it down layer by layer.

(2) When which one has no previous counting unit? Just write 0 in which position.

4. Compare the sizes of numbers within 100 million?

Summary? 1. When there are many digits? This number is relatively large.

(2) when the two digits are the same? We should be the first on the left? That is, from the highest position? Which number has the highest number? This number is very large.

(3), if the highest digit is the same? Just compare with the next one? And so on? Until we compare the numbers on the same number? Which number is bigger? We can conclude that this figure is relatively large.

5. What is the unit of "ten thousand"?

Summary? Sometimes? For reading and writing convenience? We rewrote the integer of 10 thousand into a number in units of 10 thousand.

6. Find a rough figure?

Summary? This method of finding the divisor is called "rounding"? "Give up" or "Enter"? It depends on whether the highest digit of the omitted mantissa part is less than 5 or equal to or greater than 5.

7. Indicates the number of objects. 1 23456 ................................................................................................................................................................... is represented by 0. 0 is also a natural number. What is the smallest natural number? There is no maximum natural number? The number of natural numbers is infinite.

8. Decimal notation? The forward speed between every two adjacent counting units is 10? This counting method is called decimal counting method.

9. How to read hundreds of millions or more?

Summary? More than 100 million figures are also read from high places? Read on layer by layer? Don't look at the 0 at the end of the level? There are several zeros in the middle, all of which are read-only ones.

10 and more than 100 million?

Summary? 1, from advanced writing? Write it down layer by layer. 2. When which one has no previous counting unit? Just write 0 in which position.

1 1, "ten thousand" is the unit number?

Summary? The mantissa after omitting 1 100 million is rewritten as a number in hundreds of millions? It depends on tens of millions of digits to round off.

12, understanding of computing tools? Abacus? calculator

How big are 13 and 10 billion? /kloc-the thickness of 0/00 sheets of paper is 1 cm? 100 million? One million 100, 1 cm× 1 million = 1000000 cm = 1 10,000 meters.