128 23 23 27 27 How do you calculate simple arithmetic?

128 23 23 27 27 How do you calculate simple arithmetic? First of all, the two multiplication formulas with the common factor 23 can be written first, 23 multiplied by the parentheses 128-27 brackets minus 27, you can calculate the multiplier 23 100, add 23, subtract 27, that is, equal to 2300-4, equal to 2296

128 23-23 27-27 is indeed a simple algorithm for the calculation of this formula, first of all, we observe the 5 numbers in the formula, the first 4 numbers have two 23, so according to the multiplicative associativity law, the above equation can be transformed into (128-27) 23-27=101 23-27=(100+1) 23-27=2300+23-27=2296, after these two transformations, it is more convenient to calculate.

This deforms 27 appropriately, and then it is calculated using the multiplicative distribution ratio.

Solution: Please see the figure below for details.

Hope it helps.

If satisfied. Thank you.

Is this question a mistake, the last "-27" should be "-23". If this is the case, a simple operation can be performed using the multiplicative distributive property.

128x23-23x27-23

128x23-23x27-23

128-27-1)x23

100x23

This question can be divided into two steps, calculated as shown below.

solution, original form.

Note, the rational use of addition and subtraction is easy to calculate. Hope!

Distributive and associative properties can be used.

128*23-23*27-27=23*(128-27)-27=23*101-27=2296, this method is the easiest! Thank you.

Extract the same 23,128-27=101 and multiply it again.

101*23=2323, subtract 27 and you're fine, 2323-27=2296

The original title is equal to.

128*23-24*27=2296.In fact, there is no such thing as a simple calculation.

The ancients said: You can't have both fish and bear's paws - 23 bar.

=23 100-4 This step can be omitted

The answer is as follows: The analysis writes the last 27 as 27x1, as follows.

128x23-23x27-27x1

128x23-((23+1)x27)

128x23-24x27

With a binding rate, it should be -23 at the end.

How do you do simple arithmetic on 27 15+18 27-27?

The fastest is Tijiu.

Original 9 (64+3 83-3).

Questions. Haven't you figured it out yet?

Okay, thank you.

Have more questions? If there is no trouble, give me a thumbs up, thank you.

Questions. Didn't get it.

What does Step 2 mean?

Step 1 64 9+83 3 9-3 9 Step 2 (64+249-3) 9 Part 3 310 9Final result 2790

36 27+27 65-27. After a closer look at Zhongjing, I found that there are three 27 in this early pei waiter's formula, so start from 27 This formula can be transformed into 27 36 + 27 65-27 1. That is, 27 (36+65-1).

That is, 27 (36+64) 27 100=2700.

Thirty-six plus sixty-five equals one hundred and one, and the last twenty-seven is seen to be done well and multiplied by twenty-seven. One hundred and one minus one equals one hundred. Twenty-seven times one hundred equals two friends celebrating one thousand seven hundred.

According to the multiplicative distributive law, get.

Original = 27 (36+65-1).

27 15+16 27-27 simple operation, you can first observe and extract the same kind of terms, put 27 outside the parentheses, first calculate the number in the parentheses, and then multiply, 27 15+16 27-27=27 (15+16-1) 27x30 810

125 27-24 27-27.

The inverse multiplicative distributive property makes the calculation easy to calculate the hail

125-24-1) 27 - Extracting the Common Factor of the Pin Rubber Sail 27 Extended Data: Multiplicative Distributive Property:

It means that the sum (or difference) of two numbers is multiplied by a number, and they can be divided into two parts and multiplied by this number, and then the resulting product is added (subtracted), and the result remains the same.

Indicated by letters:

a+b）× c=a×c+b×c

Variant: a-b) c=a c-b c

27 36+66 27-27 2 =27 (36+66-2) Burning = 27 100 =2700 Please click on the lower right corner of the "Peel Resistant Mu Dana Answer" to support it.

Because there are 27 in all three multiplications, there are 27 (35+66-1)=27 100=2700 by using the inverse operation of the multiplication fractional jujube matching law.

This equation can be written as 27 times 35 + 66-1 parentheses equal to 27 times 100 = 2700

15*40 + 27 (calculate the multiplication in parentheses first).

41 (remain12) So, (15 40+27) 15 = 41 we can use the following simple steps: 1) Calculate the multiplication in parentheses first: 15 x 40 = 600

2) Add the result of step 1 with the number in parentheses: 600 + 27 = 627

3) Divide the result of step 2 by the divisor: 627 15 = 41 The remainder of 12 is expressed as:

41 So the simple process of arithmetic is:

1) Multiply in parentheses.

2) Add the number in parentheses.

3) The simple operation of the final divisor is mainly suitable for:

1) When the dividend is a more complex operation, the result can be calculated first, and then divided by the curved divisor. This avoids our direct division of this complex operation, which is prone to making mistakes in taking rents.

2) Multiplicative associativity, we can calculate the multiplication in parentheses first, and then the addition and subtraction outside the parentheses. This simplifies the process and makes it easier to understand. In daily mathematical calculations or quick calculations, simple arithmetic is an important and practical skill.

It can get the right results quickly, while also reducing the difficulty and chance of errors.