-
According to the meaning of the question, column: , the solution is complete, thank you!
-
Simple calculation is a special kind of calculation, which uses the laws of operation and the basic properties of numbers, so as to make the calculation easy, so that a very complex formula becomes easy to calculate the number.
The most common method used in simple calculations is the multiplicative distributive property. The multiplicative distributive property refers to ax(b+c) = axb+axc, where a, b, c are arbitrary real numbers. Conversely, AXB+AXC=AX(B+C) is called the inverse of the multiplicative distributive law (also known as extracting the common divisor), especially when a and b complement each other, this method is more useful.
There are also times when the associative property of addition is used, such as a+b+c, where b and c are complements to each other, so you can combine b and c and multiply it with a. If the + in the above equation is changed to x, it can also be easily calculated by using the associative property of multiplication.
The associative law of multiplication.
The associative law of multiplication is also a method of doing simple operations, which is expressed by letters as (a b) c = a (b c), and its definition (method) is: multiply three numbers, first multiply the first two numbers, and then multiply the third number; Or multiply the last two numbers first, and then multiply them with the first number, and the product remains the same. It can change the order of operations in multiplication operations, and the multiplication law is not used very much in daily life, mainly in some more complex operations to play a simple role.
The commutative law of multiplication.
The multiplicative commutative law is used to swap the positions of individual numbers: a b = b a additive commutative law.
The additive commutative property is used to swap the positions of individual numbers: a+b=b+a, the additive associative law.
a+b)+c=a+(b+c)
-
There is an easy way to solve this equation, and the process is as follows:
-
Answer: 23 o'clock 7-3 o'clock 45-3 o'clock 7-6 o'clock Shi Chong five six simple calculation process is as follows:
1. Extract the original Zheng nuclear number and shout the head:
2. Calculation process:
3. [Answer].
-
Solution: Be cautious and disturb the wide bridge.
-
The simplicity of this problem is simple to calculate the mu pose, and the addition exchange is used to stop the elimination law.
-
Simple, including the suppression of cheats, talk about the family plan and travel bends.
-
Back to the crack Qing answered:
41- (Wanton.)
The law of addition and defeat is applied.
-
Through observation, it is found that eight points 65 + 1 point 35 = 10, and the sum of the two numbers subtracted from Chunheng is exactly ten, so you can calculate eight points 65 + 1 point three five first, and then subtract the brackets three points to grip 6 + 6 points four, and the result is 10-10 = 0
-
, the simple operation of the land search can be written as a swap position, the first two tombs are added to get 10, and the parentheses also get 10, and the calculation result is 10-10=0.
-
Jane laughs at the rock single algorithm.
Organize the equation. Utilizing -a-b becomes spring rent -(a+b).
Calculate the signs of the rise.
Calculated to give the result =0
-
Eight o'clock 65-3 o'clock 6 + 1 o'clock silver suspicion Zen 35-6 o'clock four ants.
The front dust shift item is rounded.
Calculation, can be easily calculated.
-
This mathematical equation containing the subtraction of the addition of the royal shout can be easily calculated as follows: Original Zhenbaran =
-
。Addition and then subtraction are fine.
-
Glad you had a distraction shirt question. Looking at the four additions in the equation, we can see that adding equals 10, subtracting 6, equaling 4, subtracting, equaling. When calculating, you can see earlier what characteristics each number has.
-
According to the commutative law of addition, the root or the difference is calculated, and it can be seen as - (then the result is 10-10=0.)
-
According to the title of the statement, first write out the Dan Xian buried sub-faction as follows:
Mock Ant-(
-
code segment
assume cs:code
start:
mov al,10010000b ;The control word indicates that port A and port B are both mode pulse surplus 0, port A input, port B output.
mov dx,203h
out dx,al
s0:mov dx,200h ;Read the switch status.
in al,dx
test al,01h ;Test PA0
jz close ;When closed, it is fully illuminated.
mov al,00h ;Turn on all off, low level off, high power silver distribution to make Ping Liang.
jmp output
close:
mov al,0ffh
output:
mov dx,201
out dx,al
jmp s0 ;Duplicate detection.
code ends
end start
Vocal training bureau to make it clear, copy someone else's
-
From the omission of the question, it is known that Pai Liang got the formula.
Then you can calculate the dust search width in this way.
The university grade point average refers to a grade point score obtained after all courses and credits are calculated in a certain proportion. The grade point average achieved by Chinese college students is not that difficult. There are four main scoring methods: arithmetic average, weighted average, grade point and grade point average. >>>More
Generally, it can only be dug up and checked, and there is no instrument to detect water leakage without damage. There are several ways to check this: >>>More
Gender: Female.
Born: February 14, 1979 at 23:55 (Gregorian calendar). >>>More
Li Baobao's birth true sun time: 2012-7-13 15:30 birth date eight characters: 壬辰年 Ding Weiyue Yihai day Jiashen time. >>>More
How about Ji Wenchang's name.