How to list and explain the vertical type of 300 minus 185?

As. Explanation, first of all, vertical calculation, must be aligned with single digits, ten digits, and hundreds of digits, and then start from single digits, and calculate from back to front.

When 300 minus 185, first subtract from the single digit, not enough to subtract the previous digit to borrow one and then subtract 5 equals 5, ten digits at this time is not enough to reduce, but also to borrow one from the previous one, but it has been lent to you, so at this time there is 9 left, 9-8 = 1, and there is still 2-1 = 1 left on the hundred digit, so the answer = 115.

The result of this question is 115. We must pay attention to the alignment of the same digits when the column is vertical. Then we can't subtract 0-5, so we have to borrow one from the previous digit. Assume 10 to continue subtracting. So that you can understand.

Vertical calculation 354+276 463-185 377+465 284-193 300-253 275+643 Vertical calculation 354+276 463-185 377+465 284-193 300-253 275+643 354+276=630;463-185=278；377+465=842；284-193=91；300-253=47；275+643=918．

Hello, happy to give you the answer: 398x405=(400-2)x405=400x405 -2x405=162000 -810=161190

<> 1000 subtraction vertical how to borrow:

1000 subtraction vertical calculation, the single digit borrows 1 from the 10th digit, as 10, the ten digit of 1000 borrows 1 from the 100th digit, because the ten digits borrow 1, so the ten digits remain 9, and so on, the single digit of 1000 does not borrow 1 from the ten, and 1000 becomes 99 (10), (the 9 with the front surface is the hundred, and the 9 behind it is the ten, and the 10 is a digit number).

Subtraction is a four-rule operation.

The operation of subtracting another number from one number is called subtraction; Knowing the sum of two additions and one of them, the operation of finding the other addition is called subtraction. The symbol for subtraction is "-" read as a minus sign.

Abdication subtraction. Mathematical terminology.

It can also be referred to as borrowing subtraction.

That is, when the two numbers are subtracted from each other, and the single digit of the subtracted number is not enough to subtract, the previous digit is borrowed, which is equivalent to adding 10 to the number of silver in this clan, and then calculated.

200 minus 104 vertical:

Additive operations1. Add two numbers with the same sign, take the symbol of the same trace as the additive, and put the absolute value.

Add. 2. If the absolute value is equal, the sum of the two numbers of the opposite number is 0; If the absolute values are not equal, take the sign of the addition with the larger absolute value, and subtract the smaller absolute value from the higher absolute value.

3. Add two numbers that are opposite to each other to get 0.

4. Add a number to 0 and still get this number.

5. Two numbers that are opposite to each other can be added first.

6. Numbers with the same symbol can be added first.

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300 minus 198 vertical:

Subtraction formula1. Minus - minus = difference.

2. Difference + subtraction = subtraction.

3. Subtracted Huaiqing - difference = subtraction.

Subtractive correlation lead wheel terrestrial.

1. Anti-exchange rate: subtraction is anti-commutative, if a and b are two numbers that Ren Tong means, then (a-b)=-b-a).

2. Anti-associativity: Subtraction is anti-associative, and when trying to redefine subtraction, then a-b-c=a-(b+c).

Vertical is an arithmetic method of arranging numbers in vertical rows. The following is the vertical column method of 300 minus 107 and the quiet collapse: 3 0 0-1 0 7---1 9 2 The steps are as follows:

Subtract from right to left: 0-7 is caught-7, and 10-7=3, 0-0=0, and 3-1=2 are obtained after borrowing. Fill in the results obtained in the previous step in turn in the corresponding position below the vertical type, and get 193 is the final result.

In this vertical type, the first line of the table shows the subtracted number, the second line represents the subtraction number, and the horizontal line below the vertical type represents the subtraction operation, and the result is written above the horizontal line.

The following is the vertical calculation process of 300 minus 299: Hunger which brigade.

Therefore, 300 minus 299 is equal to 1.

Answer: 300-299, two digits up and down, write the minus sign on the left side of the subtraction below, draw a horizontal line below the land, the horizontal line is not too long and the omission is sold well below the minus sign and the minus, and then the two numbers are randomly searched and subtracted from the single digit.