The sum of 29 9 25 is calculated vertically.

The sum of the 29 is yes.

The sum of the sum of 29 is equal to the product of 29 and .

The sum of n identical numbers a is equal to the product of n and a.

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No objection remembers

Vertical solution idea: divide the dividend.

The divisor is performed from each digit from the high position, and the quotient obtained each time is retained, and the remainder is retained.

Add the next digit to the operation, and the divisor will be divided into digits in this order, and the obtained quotient will be combined in order, and the remainder is the result of the last operation.

Problem solving process: Step 1: Because the divisor is not an integer, first turn the divisor into an integer of 128, and the dividend is expanded by the same multiple at the same time, and the sail is: 960

Step 2: 960 128=7 The remainder is: 64

According to the above calculation steps, the combination result quotient is 7, and the remainder is taken as the check: 7

Extended Data $ Validation: Four Operations.

Rules (calculated in order, multiplication and division first and then addition and subtraction, with parentheses first with parentheses, with multiplication.

Calculate the power first), i.e., the off-form operation (recursive equation calculation) needs to be carried out under the premise of this principle. Problem solving process:

If you have any doubts, please ask and be satisfied.

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I am Mr. Dong Xiaoming, and I am good at mathematics, physics and chemistry.

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How to divide by 28 vertically.

Hello dear, it is a pleasure to serve you! I am Mr. Dong Xiaoming, and I am good at mathematics, physics and chemistry. I will provide you with the process and answer the rough case within 5 minutes, please wait for a while.

Key points of division vertical calculation: 1. When the column is vertical, the unit digit of the quotient should be aligned with the unit digit of the dividend. 2. The product of the quotient and the divisor is written below the disturbance of the dividend.

3. Finally, draw a horizontal line below the slow accumulation. 4. Write the difference between the product of the dividend and the quotient and the divisor of the sedan car under the horizontal line. Good.

The problem can be calculated by dividing vertically, starting from the high position of the dividend, the divisor has several Lu vertical, just look at the first few digits of the dividend, if it is not enough to divide, look at one more person. Divide to which digit of the dividend, write the quotient on which digit, if it is not enough to divide, on this digit quotient 0. The remainder of the division must be smaller than the divisor, and the number of the dividend-being in this digit falls to the right of the remainder.

The approximate number is approximate according to the principle of rounding. Depending on which digit the question requires to be retained, the specific calculation process here is as follows:

Thank you!

Both sides rushed to Wang and took the cherry sail to 10 simplified.

Vertical formula. So the vertical calculation of dividing is shown above. Scattered Songzai.

Vertical metering seepage bridge preparation. Calculation formula.

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Both sides rushed to Wang and took the cherry sail to 10 simplified.

Vertical formula. So the vertical calculation of dividing is shown above. Scattered Songzai.

20 + Tong Liangfan This is an addition formula with decimals, and the number of digits is the same when the key is closed, that is, the single digit plus one digit, ten digits plus ten digits, and the same goes after the decimal point. There are only single digits with the same number of digits in this equation, so add the single digits, that is, 0+9 9, and the other digits remain the same, so 20+. The vertical calculation formula is as follows:

20+ This is an addition formula with a decimal side leakage, and the same number of digits is added when calculating, that is, one digit plus one digit, ten digits plus ten digits, and the same is true for the decimal search point. There are only single digits with the same number of digits in this equation, so add the single digits, that is, 0+9 Yun Lao 9, and the other digits remain the same, so 20+. The vertical formula is as follows:

Vertical hail difference: Be cautious.

—Gen Xiaopi—

Equal to 20 plus letters.

The column formula 20 + ten digits are unchanged and the single digits are added to tease Sun, and the small trillion fingers are unchanged behind the number of points in the wheel, and the result is equal to.

Multiply the column vertical pickpocketing good Ming calculation such as spring socks sleepy:

Multiplication, which is the multiplication of decimals, can be obtained by the multiplication rule of integers, which is a multiplication of a multiplier with three girder friends. Write it on top and write it on the bottom.

First, use the 6 on the multiplier digit to multiply 989 to get 5934 ones, and the product of the oak locust digit is aligned with the unit digit of the multiplier imitated by Hui.

Multiply the 5 on the tens to 989 to get 4945 tens, and the ten digits of the product are aligned with the tens of the multiplied digits.

Finally, multiply 989 by the 2 on the multiplied hundreds to get 1978 hundreds, and the hundreds of the product are aligned with the hundreds of the multiplier.

Add up the three numbers, and finally get 253184, the multiplier has two decimal places, and the multiplier has one decimal place, so the product should have four decimal places, we count four places in the product, and after the decimal point is pointed, it is the final result.

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